Dick Rose [rarose@prodigy.net] SLIDE RULES, CALCULATORS, DRAFTING TOOLS, AND RELATED ITEMS -- FOR SALE : AS OF JULY 4, 1999 SUMMARY LIST This is a summary list of the slide rules, mechanical calculators, drafting tools, books, and other, related items that I currently have for sale. Many, many items are new since the last list -- some real hidden treasures. Please let me know if you would like more information, including prices, on any of the items. You may refer to items by their number and the "July 2 List" designation. Thanks. Dick Rose 2605 Ridgefield. Rd. Kalamazoo, MI 49024 616-323-2312 rarose@prodigy.net SLIDE RULES 1. Acu-Math No. 4 --- 10 inch rule. Scales: K, A [B, CI, C] D, L. White plastic. Narrow rule. Magnifying cursor. Good condition, just a few light scratches and a little dirt. 2. Acu-Math A-80 --- 5 inch rule in leather case. Scales: K, A [B, S, T, C] D, DI, and, on the other side, fraction of an inch to decimal conversions [L, C2, C1] DI, D2, D. White on magnesium. Overall, 7 1/2 inches long and 1 1/2 inches wide. Very good condition, just a little dirt and a little magnesium edge corrosion. Green leather slip case in very good condition. 3. Acu-Math 150 --- 10 inch rule in case. Scales: LL01, K, A [B, T, ST, S] D, L, LL1, and, on the other side, LL02, LL03, DF [CF, CIF, CI, C] D, LL3, LL2. White plastic. Good condition, a slight amount of wear and dirt. Tan leather slip case, solid, but dirty. 4. Acu-Math 400 --- 10 inch rule. Scales: S, K, A [B, CI, C] D, L, T. White plastic. Clear, plastic, frameless cursor. Marked Mannheim. Made in the U.S.A. (Several others available, some with case, box, and/or instructions.) 5. Acu-Math 500 --- 10 inch rule with case, instructions, guarantee, parts list, and box. Scales: S, K, A [B, CI, C] D, L, T. Equivalents on the back. Heavy white plastic with metal end plates. Very good condition. Instruction booklet, guarantee, parts list, and slip case, all in very good condition, just minor flaws. The box is slightly scrunched and is missing the flap at one end. 6. Acu-Math 511 --- Excellent, 10 inch Mannheim Professional rule, with case, instructions, and box. Scales: S, K, A [B, CI, C] D, L, T. White laminate on magnesium alloy. Made in U.S.A. Frameless plastic cursor. Equivalents on the back of the rule. Includes, Acu-Math Self-Teaching Instruction Manual, Mannheim Type Slide Rule; tan leather case; and original box. The box has a little shelf wear. The rest is excellent. (Others available.) 7. Acu-Math 1211 --- 5 inch, narrow rule, in case. Scales: K, A [B, CI, C] D, L, and, on the other side of the slide [S, T]. White on magnesium. Plastic cursor with two hairlines -- may not be the original. Very good condition, as is the red leather slip case. 8. Acu-Math 1240 --- 5 inch rule in case. Scales: K, A [B, CI, C] D, L. White plastic. Very good condition. Blue leather slip case, marked Posey Iron Works, Lancaster, PA. 9. Acu-Math 1311 --- 10 inch, Log Log Decimal Trig, Acu-Math No. 1311, with case. Scales: LL01, K, A [CF, CIF, CI, C] D, L, LL1, and, on the other side, LLO2, LL03, DF [B, T, ST, S] D, LL3, LL2. White laminate on magnesium. Frameless plastic cursor. Good condition, fading of red numbers. Vinyl slide case. 10. Acu-Rule 10 (?) --- 10 inch rule in cardboard outer box, with instructions. Scales: A [B, CI, C] D, K. White paint on light-colored wood. Almost new condition. Equivalents tables on the back. Labeled Festus Mfg. Co., Festus, Mo. Looks like a Lawrence Engineering rule. Box is red, white and black, marked Acu-Rule No. 10. One box end missing. Instruction sheet, in very good condition, copyright 1938. 11. Allegheny Plastics --- 4 1/4 inch circular rule, with instructions. Scales: K, D [C, B] A [CI] L. White plastic. Decimal/fraction equivalents on the back. Marked Reco Products Div., Recony Corp. Instructions well-worn. The rule itself in very good condition. 12. Aristo (unusual) --- 10 inch rule in a wood, clam-shell case. Scales: K, A [B, CI, C] D, L, and, on the back of the slide, [sin, sin/tg, tg]. 28 cm scale on the top beveled edge. White plastic. No actual manufacturer's label on the rule itself. The case/box is marked Aristo. (Could this be the first Aristo rule that Dennert & Pape made, after which the company changed its name to Aristo?) The wooden clam-shell box is covered in a blue cloth. The rule is in good condition. The case is in only fair condition. Very interesting set. 13. Aristo 89 --- Almost-new, 5 inch rule, leather case. Scales: K, A [B, CI, C] D, L, and, on the other side of the slide, [S, ST, T]. 13 cm scale on the top beveled edge. 5 inch scale on the back. White plastic. # G5822. Brown leather slip case, labeled Aristo. Everything almost new. (Others available.) 14. Aristo 99 --- 11 inch rule in slip case. Scales: K, A [B, CI, C] D, L, and, on the back of the slide, [S, ST, T]. 11 inch scale on the back. White plastic. Marked: Aristo-Rietz, Dennert & Pape, Hamburg. Very good condition -- just a little dirt and a slight amount of fading, but everything is clear and readable. Tan fiber-covered slip case has some marks and wear, but is solid. 15. Aristo 815E --- New in box, 5 inch, Aristo-Elektro rule, with case, instructions, and box. Scales: K, A(kW) [B(PS HP), BI, CI, C] D, D/M(=), V, and, on the back of the slide, [S, ST, L, T]. White plastic with clear plastic beveled edges. 15 cm scale on the top edge. 6 inch scale on the bottom edge. Back has a clear section so that the back of the slide can be seen. Brown leather slip case. 23-page manual. Yellow outer box. Everything new. 16. Aristo 803 --- 5 inch rule. Scales: L, K, A [B, CI, C]D, S, ST, T. White plastic with yellow highlighted scales. Excellent condition. 17. Aristo 812 --- 5 inch rule, in case. Scales: A [B, C] D, and, on the back of the slide, [S, L, T]. 13 cm scale on the top beveled edge. White plastic. #B524. On the back, Brunner Verzinkerei, Bruder Bablik. Handmade leather case. 18. Aristo 867 U --- Excellent 5 1/2 inch rule in brown leather slip case. Scales: K, A [B, BI, CI, C] D, P, S, T, and, on the back of the slide, [L, LL1, LL2, LL3]. 15 cm scale on one beveled edge and 6 inch scale on the other beveled edge. White plastic with clear plastic on the edges and center of the back. Excellent condition. The brown leather case in very good condition. (Others available.) 19. Aristo 868 --- New in box, 5 inch, Aristo-Studio rule in case with instructions and outer box. LL01, LL02, LL03, A [B, L, K, C] D, LL3, LL2, LL1, and, on the other side, ST, T1, T2, DF [CF, CIF, CI, C] D, P, S. White plastic with yellow highlighted scales. 40-page manual, copyright 1959, in Italian(?). Brown leather slip case. Yellow, black, red, and white outer box. Everything new. (Others available.) 20. Aristo 870E --- New in box, 5 inch Aristo-Multilog, leather case, instructions, and box. Scales: LL00, K, A [B, T, ST, S, C] D, DI, LL0, and, on the other side, LL01, LL02, LL03, DF [CF, CIF, L, CI, C] D, LL3, LL2, LL1. Marked: Aristo Nr. 870, Made in Germany. White plastic. Brown leather slip case. 31-page instruction manual. Yellow outer box. Everything is new. 21. Aristo 890 --- New, 5 inch rule, Aristo Reitz. Scales: K, A [B, CI, C] D, L, and, on the back of the slide, [S, ST, T]. White plastic. Marked, Rockwell Valves International Inc. on the back. Brown leather slip case. Everything is new. 22. Aristo 0901 --- New in box, 10 inch Aristo-Junior rule, with case and instructions. Scales: DF [CF, CIF, CI, C] D, A, K. White plastic with some scales yellow-highlighted. Red and white, hard plastic case. Yellow, black, and white outer box. Instructions in German. Everything new. (Others available.) 23. Aristo 0903 --- Almost new 10 inch Aristo-Scholar, slide box. Scales: L, K, A [B, CI, C] D, S, ST, T. On the back, a 25 cm scale and a 10 inch scale. White plastic with some scales yellow-highlighted. Like new. Case/box, gray, marked Aristo Scholar LL, is taped at both ends. (Others available, including scale variations.) 24. Aristo 0903LL --- New in box, 10 inch Aristo-Scholar LL, hard plastic slide case, instructions, outer box. Scales: L, K, A [B, BI, CI, C] D, S, ST, T, and, on the back of the slide, [S, LL1, LL2, LL3]. White plastic with some scales yellow-highlighted. New. Red and white hard plastic slide case, marked Aristo. Yellow, black, white, and red outer box. Instructions, copyright 1957, are in a Germanic language (not German). A brand new, beautiful set. (Others available, including scale variations.) 25. Aristo 0903LL --- Almost new, 10 inch Aristo-Scholar LL, hard plastic slide case, instructions, separate formula rule, and outer box. Scales: L, K, A [B, CI, C] D, S, ST, T, and, on the back of the slide, [S, LL2, LL3]. On the back, a 25 cm scale and an 8 inch scale with 1/20 inch and 1/32 inch markings. White plastic with some scales yellow-highlighted. Almost new. Red and white hard plastic slide case, marked Aristo-Scholar LL. Separate yellow flexible plastic formula rule, Aristo 1365. 23-page instruction manual, in German, copyright 1957. 26. Aristo 0903 VS --- New in case, 10 inch Aristo 0903 VS, hard plastic slide case, and instructions. Scales: L, K, A [B, CI, C] D, S, ST, T, and, on the back, DF [CF, C] D]. Also on the back, 25 cm scale, and a 1/20 inch, 1/32 inch scale. White plastic with some scales yellow-highlighted. New. Red and white hard plastic slide case. 23-page instructions in German, copyright 1957. Everything new. 27. Aristo 0903 VS-2 --- New in box, 10 inch Aristo 0903 VS-2, hard plastic slide case, instructions, outer box. Scales: L, K, A [B, CI, C] D, S, ST, T, and, on the back, DF [CF, CI D]. Also on the back, 25 cm scale, and a 1/20 inch, 1/32 inch scale. White plastic with some scales yellow-highlighted. New. Red and white hard plastic slide case, marked Aristo. Yellow, black, white, and red outer box. 23-page instructions, copyright 1958. Everything new. (Another available.) 28. Aristo 0906 -- 10 inch Aristo-BiScholar with hard plastic slide case and outer box. Scales: K, A [B, BI, S, C] D, L,P and, on the other side, ST, T1, T2, DF [CF, CIF, CI, C] D, DI, S. White plastic with some scales yellow-highlighted. No cursor. Name on end piece. Made in Austria. Red and ivory-colored hard plastic slide box - dirty.. Yellow, white, black, and red outer box. 29. Aristo 0906/0906 LL Instructions --- Instruction manual for the Aristo 0906 and 0906 LL, in German. 30. Aristo 0907 --- Almost new, 10 inch Aristo-Commerz-Junior rule in case with instructions and outer box. Scales: A, DF [CF, CIF, CI, C] D, L, LL1, LL2. White plastic with yellow highlighted scales. Instructions in German. Red and white hard plastic, two-piece case. Outer box. 31. Aristo 0908 --- Almost new, 10 inch Aristo Trilog rule in hard plastic slip case with separate rule with formulas, with instructions and box. Scales: T1, T2, A [B, BI, CI, C] D, P, S, ST, and, on the other side, LL1, LL2, LL3, DF [CF, CIF, CI, C] D, L, K. White plastic with yellow scale highlites. Extra 10 1/2 inch flexible rule with formulas, marked Aristo 1365, Made in Germany. Red and white hard plastic slip case, marked Aristo. Instructions in German. Box is well worn, but the rule is almost new. (Others available, including scale variations.) 32. Aristo 0908 Instructions --- a 31-page instruction folder for the Aristo TriLog 0908. Complete illustrated instructions, in German. Very good condition. (Another available.) 33. Aristo 909 --- 10 inch Aristo-Multitrig. Scales: P, A [CF, CIF, CI, C] D, DI, and, on the other side, K, DF [B, T, ST, S] D, L. Marked: Aristo, Nr. 909, Made in Germany, Aristo-Multitrig, Charvoz, DBGM. White plastic with some yellow-highlighted scales. Good condition -- minor scratching and a little dirt. 34. Aristo 915E --- New in box, 10 inch, Aristo-Elektro rule, with case, instructions, separate equivalents rule, and box. Scales: K, A(kW) [B(PS HP), BI, CI, C] D, LL3, LL2, D/M(=), V, and, on the back of the slide, [S, ST, L, T]. White plastic with clear plastic beveled edges. 28 cm scale on the top edge. 1/20 inch and 1/32 inch scales on the bottom edge. Back has a clear section so that the back of the slide can be seen. Wide cursor with multiple lines. Separate equivalents and other measures rule, Aristo 1364. Fits in special slot in the two-tone gray, hard plastic case. 23-page manual. Yellow outer box. This is a beautiful, new set. 35. Aristo 915 --- New, 10 inch, Aristo-Elektro rule, with case and separate equivalents rule. Scales: K, A(kW) [B(PS HP), BI, CI, C] D, LL3, LL2, D/M(=), V, and, on the back of the slide, [S, ST, L, T]. White plastic with clear plastic beveled edges. 28 cm scale on the top edge. 1/20 inch and 1/32 inch scales on the bottom edge. Back has a clear section so that the back of the slide can be seen. Wide cursor with multiple lines. Separate equivalents and other measures rule, Aristo 1364. Fits in special slot in the two-tone gray, hard plastic case. (Another, almost new, available.) 36. Aristo 965 --- New in box, 10 inch Aristo-Commerz II rule, with case, instructions, separate equivalents rule, and outer box. Scales: %, KZ [T2, P2, P1, T1] Z, M (for converting British/U.S measures to metric), British Pound, s./d. , and, on the back of the slide, [ZZ3, ZZ2, ZZ1, ZZ% (ZZ's are compound interest scales.), T1]. 28 cm scale on the top, clear plastic, beveled edge. 1/20 inch, 1/32 Inch scales on the bottom, clear plastic, beveled edge. White plastic with clear plastic beveled edges and a clear plastic section on the back, through which to read the back-of-slide scales. Separate yellow plastic equivalents rule, Aristo 1361. 30-page instruction manual. Two-tone gray, two-piece slide case, marked Aristo. Yellow, black, red, and white outer box. Everything new. A very interesting, nice set. (Others available.) 37. Aristo 967 U --- 10 inch rule in slip case/box. Scales: K, A [B, BI, CI, C] D, P, S, T, and, on the back of the slide, [L, LL1, LL2, LL3]. 11 inch scale on the top beveled edge. White plastic. Marked, Made in Germany, Aristo, Nr. 967U. 28 cm scale on the back, along with an equivalents label. Very good condition. Tan, two-piece slide box, marked Aristo Darmstadt. 38. Aristo 0968 --- New in box, 10 inch Aristo Studio rule in cardboard slide box with a separate plastic measurement rule (Aristo 1367) and separate plastic equivalents rule (Tabelle A - Okt. 1959) . Scales: LL01, LL02, LL03, A [B, L, K, C] D, LL3, LL2, LL1, and, on the other side, T, ST, DF [CF, CIF, CI, C] D, P, S. White plastic with some yellow-highlighted scales. Marked: Aristo Nr. 0968, Made in Germany, Aristo Studio. Rubber bumpers to allow the rule to be used while flat on a desk. 39. Aristo 0968 --- New in box, 10 inch Aristo Studio rule in hard plastic slide box with a separate equivalents rule (Aristo 1364), stand, instructions, and outer box. Scales: LL01, LL02, LL03, A [B, L, K, C] D, LL3, LL2, LL1, and, on the other side, ST, T1, T2, DF [CF, CIF, CI, C] D, P, S. White plastic with some yellow-highlighted scales. Marked: Aristo 0968, Germany, Aristo Studio. Rubber bumpers to allow the rule to be used while flat on a desk. Gray, plastic, clip-on stands to allow the rule to be used on a desk, in an upright position. A two-sided flexible plastic equivalents rule is also included and fits into a special slot in the case. Two-tone, gray, hard-plastic slip case, marked Aristo. Instructions, copyright 1958, in Germanic language. (Another available, plus others, slightly used.) 40. Aristo 10133 --- Very unusual, 8 1/2 inch rule in case. Marked: Philips Cinema. Scales: P (distance between projector and screen) [H (height or width of picture on the screen), h,b (height or width of the image on the film) ] f (focal length of the lens). White plastic. Definitions (in four languages) and formulas on the back. Very good condition. Slip case. Very unusual rule. 41. Aristo Instructions --- Instructions for Aristo Studio, Studiolog 868, 0968, 01068, 0969. 41 pages. In German. 42. Atlas Copco --- 5 1/2 inch specialty rule, with leather case and instructions. No cursor. Seems to be for valve flow calculations. Scales: delta P [d, P, L] Q. White plastic. Very good condition, but no cursor. Copyright Atlas Copco, Stockholm, Schweden. Instructions on the back and on separate sheet, in Swedish? Brown leather slip case marked, Atlas Copco. . 43. Blundell S150-10 --- 10 inch rule. Scales: S, T, A [B, CI, C] D, K, L. Marked: Blundell, Harling, England. White plastic. Very good condition. 44. Blundell 812 --- 5 inch Classmate rule, in case, with instructions. Scales: S, T, A [B, CI, C] D, K, L. White plastic. Made in England. Tapered end pieces. Instructions on a separate plastic rule. Blue vinyl slip case. Everything in excellent condition. 45. Blundell 909 --- 5 inch rule in case. No cursor. Scales: A [B, CI, C] D, and, on the back of the slide, [S, ST, T]. White plastic. No cursor. Brown leather slip case. All in good condition. 46. Boots Ringplan --- 10 inch rule in case, with instructions. Scales: A [B, CI, C] D, K, and, on the back of the slide, [S, L, T]. 25 cm scale on the top beveled edge. 10 inch scale on the bottom beveled edge. White plastic. Very good condition. Yellow instruction sheet. Gray and clear plastic slide case. 47. Bristol Line 18-4 --- A narrow, 4 inch rule in case. Scales: A [B, CI, C] D, K, and, on the back of the slide, [S, L, T]. 4 inch scale on the top beveled edge. White plastic. Marked: Bristol Line No. 18-4. Japan. Excellent condition. Brown leather slip case, with advertising name in gold, in very good condition. 48. British Thornton AD 050 --- 10 inch Log Log rule in case. Scales: LL2, LL3, L, A [B, CI (ISd, ITd, Td, Sd) C] D, S, ST, T. Very heavy white plastic with tan plastic end pieces. Very good condition. Made in England. Gray rigid plastic slip case. (Others available.) 49. British Thornton AD 050 --- 10 inch Log Log rule in case. Scales: LL2, LL3, L, A [B, CI, (ISd, ITd, Td, Sd) C] D, S, ST, T. Very heavy white plastic with tan plastic end pieces. Very good condition. Made in England. 50. British Thornton AD 070 --- 10 inch Modern Maths rule in case. Scales: K, A [B, CI, C] D, L. Very heavy white plastic with tan plastic end pieces. Excellent condition, just name scratched on back. Gray, two-piece plastic slide case. 51. British Thornton AD 150 --- 10 inch rule in case. Scales: LL1, LL2, LL3, A [B, CI, K, C] D, S, ST, T. Heavy white plastic with tan end pieces. Grey plastic two-piece slide case. Scratches on the case. Rule in good condition. (Another available.) 52. British Thornton P271 --- New in box, 10 inch rule in case with instructions. Scales: LL2, LL3, L, A [B, CI, C] D, S, ST, T. Very heavy white plastic with tan plastic end pieces. 24 page manual which includes a brief history of British contributions to slide rule invention and development. Black, two-piece, hard-plastic, slide case. Black outer box. Everything new. (Others, used, available.) 53. British Thornton P281 --- 10 inch rule in case. Scales: cm, K, DF [CF, CI, C] D, A, inch. Very heavy white plastic with tan plastic end pieces. Very good condition -- just a little dirt. Made in England. Black flip-top snap case in worn condition. 54. BRL P150: 5 inch rule in case. Scales: A [B, CI, C] D, and, on the back of the slide, [S, ST, T]. 5 inch scale on the top beveled edge. 15 cm scale on the back. White plastic. Made in England. Brown leather slip case, marked B.R.L. in gold. Everything in very good condition. 55. Charvoz-Roos, SR-109 --- 10 inch rule in case. Scales: T, DF [CF, CIF, CI, C] D, S, ST, and, on the back of the slide, [B, K, L, C]. Made in the U.S.A. White laminate on mahogany. Plastic cursor. Equivalents and formulas on the back. The leather, flip-top case is well worn, but the rule itself is in excellent condition. 56. Charvoz-Roos 111 --- 10 inch Trig-O-Log rule, no case. Scales: LL0, LL00, A [B, K, C] S, ST, T, and, on the other side, L, LL1, DF [CF, C] D, LL3, LL2. White laminate on mahogany. Some fading or red lettering on two scales. Plastic cursor missing one screw. End plates a bit worn and some markings on them. Overall condition, OK. 57. Circular (Very large) --- 12 inch diameter circular rule for triangle solutions, probably for artillery. One side has the instructions for the solution of right triangles, the other for oblique triangles. Four scales. Two cursors. Plastic laminate on hardboard. There is even room to write information and graph results on the back -- the surface is washable. A very interesting item. 58. Classic --- 10 inch rule in case with instructions. Scales: LL2, A [B, S, T, C] D, LL3. 10 inch scale on the top beveled edge. 26 cm scale on the bottom edge. White laminate on mahogany. Made in England. Very good condition. Blue, two-piece slide case with some wear. Instructions. 59. Compass 1321 --- Very nice, 10 inch rule in brown leather, flip-top case. Scales: L, LL1, DF [CF, CIF, CI, C] D, LL3, LL2, and, on the other side, LL0, LL00, A [B, K, CI, C] D, S, ST, T. Marked: Compass, No. 1321, Made in Japan, E.K.-3. Frameless cursor. White laminate on bamboo. A tiny bit of dirt, but otherwise in excellent condition. Case, marked Compass, Made in Japan, has a few rubs and creases at the hinge points, but is solid except for a broken strap to hold down the flip-top. 60. Concise Circular 28N --- New, 3 1/4 inch circular rule, Concise Circular Slide Rule, Made in Japan, with case and instructions. Scales: D [C, CI, A, K]. Heavy white plastic. Area, Weight, Volume, Velocity, Pressure, Flow Rate, Length, Power-Energy-Heat, Density, and Temperature conversions on the back. Yellow, vinyl slip case. 28-page instruction booklet. Everything is new. (Others available.) 61. Concise Booklet --- Concise Conversion Tables and Circular Slide Rule, Model CTCS-552 booklet. Small, 16-pages. 62. Concrete Quality Calculator --- 11 inch rule. Brown fiber slip case. Scales: A (Depth or Thickness in Feet) [B (Width of Height in Feet), C (Length in Feet)] D (Cubic Feet/Yards). White laminate on light-colored wood. Instructions on the back. General Transit-Mix Concrete Service, Hartford Conn. Five-digit phone number. Made by Slide Rule and Scale Engineering Co., Mt. Olive, Ill. No cursor was intended. Case needs a few stitches. 63. Dennert 1190 --- Interesting 10 inch rule, in case. Scales: F, A [B, CI, C] D, E, and, on the back of the slide, [S, ST, T]. 25 cm scale on the top beveled edge. 11 inch scale on the bottom edge. Marked Dennert, Weidenberg, NR. 1190, Dewe. White laminate on mahogany. Adjustment screws. Equivalents in German on the back. A few very small flaws, but otherwise in very good condition. Black, two-piece slide case. 64. Dietzgen --- 5 inch rule, brown leather case, broken cursor. Scales: K, A [B, CI, C] D, and, on the back of the slide, [S, L, T]. On the back, a 5 inch scale and a 12 cm scale. Marked Dietzgen, Made in U.S.A. White plastic. One corner chipped. One of three screws missing. Some dirt. Cursor broken off. Leather slip case is solid, but worn. 65. Dietzgen --- 10 inch rule in case. Scales: K, A [B, CI, C] D, and, on the back of the slide, [S, L, T]. 10 inch scale on the top beveled edge. 25 cm scale on the bottom edge. White laminate on mahogany. Equivalents label on the back. Very good condition, except for 1/4 inch missing laminate on the inch scale. The slide is slightly longer than the rule. The case is brown leather with an expanded section at the top; is marked Dietzgen, Made in the U.S.A., in gold, and is in excellent condition. 66. Dietzgen --- 10 inch rule in case. Scales: K, A [B, CI, C] D, and, on the back of the slide, [S, L, T]. 10 inch scale on the top beveled edge. 25 cm scale on the bottom edge. White laminate on mahogany. Equivalents label missing from the back, as are two of the four screws. Initials on the back. Otherwise, very good condition. The cursor is a K+E. The slide is slightly longer than the rule. The black box/case is missing its flip top. 67. Dietzgen N1725 --- 10 inch Dietzgen Microglide, Vector Type Log Log, in case. Scales: Th, Sh2, Sh1, A [B, T, T, ST, S] D, DI, K, and, on the other side, LL01, LL02, LL03, DF [CF, CIF, L, CI, C] D, LL3, LL2, LL1. White laminate on mahogany. Serial # 112222. Black, flip-top case. Very good condition. 68. 1725 Dietzgen Manual --- Self-teaching Instruction Manual, No. 1725, Vector Type Log Log Slide Rule. 155 pages. Copyright 1959. Very good condition. 69. Dietzgen 1732 --- 10 inch Dietzgen Maniphase Multiplex, Decimal Trig Type Log Log Rule in black leather-covered, flip-top box. Scales: L, LL1, DF [CF, CIF, CI, C] D, LL3, LL2, and, on the other side, LL0, LL00, A [B, T, ST, S] D, DI, K. Eugene Dietzgen Co. Pats. 2,170,144 and 2,285,722. Made in U.S.A. Serial # 541387. White laminate on mahogany. Very good condition. Black box/case is solid except that the flip top is detached. (Others available, including scale variations.) 70. Dietzgen 1732 --- Almost new, 10 inch Dietzgen Micromatic, Decimal Trig Type Log Log Rule in black leather flip-top case, with box and papers. Scales: LL01, K, A [CF, CIF, L, CI, C] D, DI, LL1, and, on the other side, LL02, LL03, DF [B, T, T, ST, S] D, LL3, LL2. Eugene Dietzgen Co. Pats. 2,170,144 and 2,285,722. Serial # 086756. White laminate on mahogany. Almost new. Black leather case is also almost new. Separate plastic conversion tables rule, copyright 1950. Warranty. Instructions for Care and Adjustment paper featuring a diagram of the Micromatic adjustment. Original slide box, orange, black, and white -- very good condition. A very nice set. 71. Dietzgen 1732 Box/Case --- Black covered, box/case: solid, with tape on one end and some wear marks, labeled Dietzgen. 72. Dietzgen 1732 Manual --- 106 page manual, The Dietzgen Maniphase Multiplex, Decimal Trig Type Log Log Slide Rule, No. 1732. By Thompson and Eshbach. Manual No. 1786-32. Copyright, 1946. Good condition. Name clipped out of first page. 73. Dietzgen 1734 --- 10 inch, Decimal Trig Type Log Log, Dietzgen Microglide. Scales: LL01, K, A [B, T, T, ST, S] D, DI, LL1, and, on the other side, LLO2, LL03, DF [CF, CIF, L, CI, C] D, LL3, LL2. White laminate on mahogany. Pats. 2,170,144 and 2,285,722. Serial # 025326. Very good condition except for a horizontal crack in one cursor glass and a little dirt. 74. Dietzgen 1735 --- 10 inch Dietzgen Maniphase Multiplex, Vector Type Log Log Rule, in case. Scales: L, LL1, DF [CF, CIF, CI, C] D, LL3, LL2, and, on the other side, LL0, LL00, A [B, T, ST, S] D, Th, Sh2, Sh1. K+E cursor. White laminate on mahogany. Owner's name neatly engraved on the rule. Serial # 102894. Good condition -- just a little yellowing and light scratches. Tan leather flip top case, worn, but useable. 75. Dietzgen 1738 --- 10 inch, Dietzgen Multiphase Style-M, Improved Decimal Trig Type Log Log Rule in case. Scales: LL01, K, A [B, T, T, ST, S] D, DI, LL1, and, on the other side, LL02, LL03, DF [CF, CIF, L, CI, C] D, LL3, LL2. Copyright 1954. White paint on magnesium. Typical paint chips on edges. Some marks on the metal end pieces. Otherwise in good condition. Brown leather, flip-top case in worn condition. 76. Dietzgen 1740 --- Like-new, 10 inch Phillips Rule in case. Scales: E, A [B, R, C] D, and, on the back of the slide, [S, L, T]. 10 inch scale on the top beveled edge. 25 cm scale on the bottom edge. White laminate on mahogany. Equivalents on the back. Like-new. The black cardboard case, marked Dietzgen Phillips Slide Rule, 1740P, is almost new. 77. Dietzgen 1742 --- 20 inch Phillips Rule in case. Scales: E, A [B, R, C] D, and, on the back of the slide, [S, L, T]. 20 inch scale on the top beveled edge. 50 cm scale on the bottom edge. White laminate on mahogany. Equivalents on the back. Good condition. The cursor is marked K+E and is probably not the original. (I can replace it with an original.) The black cardboard case is marked Dietzgen Phillips Slide Rule and has a little surface damage, but is solid. 78. Dietzgen 1743 Manual --- The Dietzgen Maniphase Multiplex Trig Type Slide Rule No. 1743, A Self-Teaching Manual. Yellow softcover. 92 pages. Copyright 1952. Good condition, just some tape marks on the cover. 79. Dietzgen 1744 --- 10 inch Polymath Multiplex, Decimal Trig Type Rule in case. Scales: K, A [B, T, ST, S] D, DI, and, on the other side, DF [CF, CIF, CI, C] D, L. Metal framed cursor with metal guides. White laminate on mahogany. Serial # 174848. Good condition: a little wear and owner's name on metal ends. Black, flip-top case: good condition with some wear marks. 80. Dietzgen 1745 --- 10 inch rule. Scales: K, A [B, CI, C] D, and, on the other side, A [S, T] D, L. White laminate on mahogany. One cursor glass broken, otherwise, very good condition. Black Box/case, flip top, marked Dietzgen Maniphase Slide Rule, also very good condition. 81. Dietzgen 1746 --- 10 inch, Dietzgen Maniphase Multiplex, No. 1746, in leather case. Scales: A [B, S, T] D, K, and, on the back, DF [CF, CIF, CI, C] D, L. White laminate on mahogany. Serial # 706555. Cursor is glass with metal frame, one side of the glass is cracked and one screw is missing (to be replaced). The rule itself is in very good condition, just slightly yellowed and a little dirt. The black leather flip-top case, marked Dietzgen, is in very good condition, just a few marks. (Another available.) 82. Dietzgen 1750P Box/Case --- Flip-top box/case, marked, Dietzgen Maniphase Slide Rule, 1750P, has just a few scrapes plus breaking at the hinge points. 83. Dietzgen 1757 --- 10 inch Primatrig rule with instructions. Scales: L, K, A [B, CI, C] D, T, ST, S. Conversions and equivalents on the back. White plastic with black plastic end pieces. Some scratches. 84. Dietzgen 1765W --- 5 inch rule in slip case. Scales: A [B, CI, C] D, K, and, on the back of the slide, [S, L, T]. White laminate on mahogany. Marked: 1765W Handy, Dietzgen, Made in U.S.A. Poor shape and dirty. Some laminate separation. Black slide case - marked: Sola Electric Company, Chicago, Illinois, Dietzgen - is brittle. 85. Dietzgen 1767 --- 10 inch rule in tan, leather slip case. Scales: K, S, A [B, CI, C] D, T, L. White plastic with black end pieces. Marked: National, Dietzgen No. 1767, Made in U.S.A. Very good condition. Case solid, with some dirt. 86. Dietzgen 1767P --- 10 inch rule in black slip box. Scales: A [B, CI, C] D, K, and, on the back of the slide, [S, L, T]. 10 inch and 25 cm scales along with equivalents tables on the back of the rule. White paint on light-colored wood. Marked 1767P National, Dietzgen, Made in U.S.A. Good condition -- some dirt and wear. Black cardboard slip box is very solid, taped at both ends, marked Dietzgen 1766P, Germany. (Another available.) 87. Dietzgen 1768-P --- Older model, 10 inch rule. Scales: A [B, CI, C] D, K, and, on the back of the slide, [S, L, T]. White laminate on light-colored wood. Marked, Reliance. Equivalence label on the back. Cursor is an old K+E, heavy metal frame. Good condition. (Another available.) 88. Dietzgen 1768-P --- New, 10 inch rule, with instructions. Scales: K, S, A [B, CI, C] C, T, L. Marked, Japan. White plastic with light blue plastic slide. Instruction booklet. Everything new, still sealed in original packaging. (Others available, both new and used.) 89. Dietzgen 1772A --- 5 inch rule with case, instructions, and box. Scales: K, A [B, CI, C] D, L. White plastic with black end pieces. Black slip case. Instruction manual, Maniphase Slide Rule by Dietzgen, 15 pages. Original yellow outer box. Everything in very good condition. 90. Dietzgen 1776 --- 5 inch Redirule, in case. Scales: K, A [B, T, ST, S] D, DI, and, on the other side, DF [CF, CIF, CI, C] D, L. White plastic. Brown leather slide case with pocket clip. Everything in excellent condition. 91. Diwa 1-1 --- Excellent, 10 inch rule, Diwa-Denmark, Rietz-Ideal No. 1-1, in leather case. Scales: L, K, A [B, CI, C] D, S, ST, T. 10 inch, 25 cm scale on the top beveled edge. On the back it is marked: Rysensteen Gymnasium. White plastic rule in very good condition, as is the brown leather, flip-top case, marked, Diwa, Denmark. (Another available.) 92. Diwa 501-1 --- Excellent, 10 inch rule, Diwa-Denmark, Reitz, No. 501-1, in leather case. Scales: K, A [B, CI, C] D, L, and, on the back of the slide, [S, ST, T]. 10 inch, 25 cm scale on the top, beveled edge. White plastic rule in excellent condition. A very nice brown leather, flip-top case, marked Diwa, Denmark. 93. Diwa 601 --- 5 inch rule in brown leather slip case. Scales: K, A [B, CI, C] D, L, and, on the back of the slide, [S, S&T, T]. 5 inch scale on the top, beveled edge. White plastic. Labeled Diwa, Denmark, No. 601. The name LaPoint is printed on the back. Very good condition, as is the brown leather slip case. (Others, similar, available.) 94. Dornen, Bruckenbau, Derne --- 4 inch, narrow rule, in case. Scales: A [B, C] D, with [S,T] on the back of the slide. 10 cm scale on the top beveled edge. 11 cm scale on the bottom edge. White laminate on mahogany or, maybe pearwood. Marked: Dornen, Bruckenbau, Derne. Heavy metal-framed cursor. Very good condition. Nice black slip box. 95. "Dynamo/Motor" --- 10 inch rule in leather case. Scales: E (Dynamo/Motor), V, A [B, K, CI, C] D, S, T, and, on the back of the slide, [LL3, LL2, LL1, L]. 25 cm scale on the top beveled edge. 10 inch scale on the bottom edge. Various electrical symbols and markings on the scales. White laminate on bamboo. Plastic cursor. Slide slightly loose; otherwise in very good condition. Brown leather flip-top case, marked Made in Japan, excellent except for an owner's name plastic-labeled on the flip top. 96. Engineering Instruments 10-B --- 9 1/2 inch rule. Scales: A [B, CI, C] D, K. White paint on light-colored wood. Equivalents and other measures on the back. Slide is slightly longer than the rule. Marked Engineering Instruments, Peru, Indiana, Made in U.S.A., Pat. Pend. (Several others available: some with case, box, magnifying cursor and/or instructions.) 97. Engineering Instruments 250-BT --- 9 1/2 inch rule, in case. Scales: A [B, CI, C] D, K, and, on the back of the slide, [S, L, T]. Light-colored wood. Equivalents and other measures on the back. Marked Engineering Instruments, Peru, Indiana, Made in U.S.A., Pat. Pend. Very good condition, just a little dirt. The blue slip case, OK condition. 98. Engineering Instruments 250-V --- 9 1/2 inch rule, in case. Scales: A [B, CI, C] D, K, and, on the back of the slide, [S, L, T]. White plastic laminate on light-colored wood. Equivalents and other measures on the back. Marked Engineering Instruments, Peru, Indiana, Made in U.S.A., Pat. Pend. Very good condition, just a little dirt. The blue slip case, OK condition. 99. Faber Castell 1/22 --- Very unusual, excellent, 10 inch rule, in case. This is a special business rule. Scales: DF [CF, CI(Val.), C(E)] D(V), L, and, on the bottom edge, s and d, and pounds sterling. On the top of the face are markings for various weights and measures, both U.S. and British. 27 cm scale on the top, beveled edge. White laminate on pearwood (?). Marked: Castell 1/22, Disponent, fur den Kaufmann. The cursor wraps around to cover both the front and the bottom edge. Equivalents label on the back is partly missing. Otherwise the rule is in excellent condition. The black slide box is not. A very interesting rule. 100. Faber-Castell 1/54 --- 10 inch rule in case. Scales: 25 cm, lg (top beveled edge)/ K, A [B, CI, C] D, P/ sin, tg (bottom edge), and, on the back of the slide, [LL1, LL2, LL3]. Instructions on the back. White laminate on pearwood. Cursor wraps around both edges. 1/54 Darmstadt. Very good condition. Black, two-piece, F-C slide case/box. 101. Faber 1/87 --- Excellent 10 inch A. W. Faber, Castell, Syst. Rietz. Scales: K, A [B, CI, C] D, L, and, on the other side of the slide, [S, ST, T], marked. 27 cm scale on the beveled, top edge, and a 1:25 scale on the bottom edge. Tables in German on the back. White laminate on mahogany. Excellent condition. Green cardboard, two-piece slip box. (Others, similar, available.) 102. Faber 1/87A (Addiator)--- 10 inch A. W. Faber, Castell, Syst. Rietz, Addiator, in box. Scales: K, A [B, CI, C] D, L, unmarked, and, on the other side of the slide, [cos, sin/tg, ctg], marked. 27 cm scale on the beveled, top edge and continued to 59 cm in the slide well, and a 1:25 scale on the bottom edge. Six-column Addiator with clearing bar is built into the back of the rule, not just attached. The stylus is built in to the end of the rule. Tables in German on the back. White laminate on pearwood. Very good condition. The original box has been taped over for strength. 103. Faber-Castell 1/92 --- Excellent 10 inch Log Log rule in box/case with instructions. Scales: LL2, A [B, CI, C] D, LL3, and, on the other side of the slide, [S, L, T]. K scale on the bottom edge. Wrap-around cursor. 10 inch scale on the top beveled edge. Dynamo and Volt scales in the slide well. Properties of metals and a wide variety of formulae on the back. White laminate on mahogany. Instruction manual. Clear and green plastic case/box. Case is in good condition as are the instructions. The rule itself is excellent. 104. Faber-Castell 1/98 --- Excellent 10 inch Elektro rule in box/case. Scales: LL2, A [B, CI, C] D, LL3, and, on the other side of the slide, [cos, lg, ctg]. K scale on the bottom edge. Wrap-around cursor. Dynamo and Volt scales in the slide well. 27 cm scale on the top beveled edge. Properties of metals and a wide variety of formulae on the back. White laminate on pearwood. Green cardboard case/box. Everything in very good condition. (Another available.) 105. Faber-Castell 2/83 N --- New in case, 11 inch scales , 14 1/2 inches overall, Novo-Duplex rule in a clam-shell case, with separate equivalents rule and instructions. Scales: T1, T2, K, A, DF [CF, B, CIF, CI, C] D, DI, S, ST, P, and, on the other side, LL03, LL02, LL01, LL00, W2 [W2', CI, L, C, W1'] W1, D, LL0, LL1, LL2, LL3. Heavy-duty white plastic with metal end plates, plus bumpers to support for desk use. Some blue and green highlighted scales. Slide longer than the rule. New in heavy-duty plastic clam-shell case -- top clear, bottom green. Separate 14 inch, flexible plastic equivalents rule. 31-page instruction booklet, in German. A massive, excellent set. (Others available.) 106. Faber 51/91 --- Excellent 10 inch rule in slide box. Scales: A [B, C] D, and, on the back of the slide, [sin, lg, tg]. White laminate on pearwood. Black slide box, A.W. Faber 51/91 in very good condition, except one end missing. Rule in excellent condition. 107. Faber-Castell 52/80 Mentor --- 10 inch rule, Castell-Mentor, in case. Scales: A, DF [CF, CIF, CI, C] D, K, and, on the back, instructions [Z', N'] N, Z. White plastic with dark green end plates and light green scale highlighting. Very good condition. Green and ivory hard-plastic case, Castell-Mentor, a little dirty. (Another available.) 108. Faber-Castell 52/82 D-Stab --- New in box, 10 inch rule, with separate equivalents rule, hard plastic slide case, instructions, and outer box. Scales: L, K, A [B, CI, C] D, LL1, LL2, LL3, and, on the other side, T1, T2, DF [CF, CIF, CI, C] D, S, ST, P. White plastic with dark green end pieces and light green highlighted scales. Separate thin plastic rule with equivalents and 25 cm and 10 inch scales. Instructions in Germanic language (not German). Gray hard plastic slip case, marked Faber-Castell. Outer box green, black, and white. A very nice, brand new set. (Others available, both new and used, including scale variations.) 109. Faber-Castell 57/22 --- 10 inch rule in clear, hard-plastic slide case. Scales: Conversion Markings, DF [CF, CI, C] D, L, and, on the back of the slide, [LL1, LL2, C]. 27 cm scale on top beveled edge. Marked: A.W. Faber Castell, 57/22, Disponent Schul Rechenstab, Made in Germany. White plastic. Dirty, as is the case. 110. Faber-Castell 57/86 --- New in box, 10 inch Columbia rule, in case, with instructions. Scales: A [B, C] D. 27 cm scale on the top beveled edge. Instructional diagrams on the back. Copyright 1962. White plastic. Gray plastic, two-piece slip case. Instructions in Norwegian (?) Green, black, and white outer box. Everything new. (Another, similar, available.) 111. Faber-Castell 57/87 (Switzerland) --- 10 inch rule in case and box. Scales: K, A [B, CI, C] D, L, and, on the back of the slide, S, ST, T. 27 cm scale on the top beveled edge. White plastic with blue scale highlights. Marked: A.W. Faber-Castell, 57/87 Rietz, Made in Switzerland. Very good condition -- owner's name in slide well. Cardboard slip case has been covered and decorated. (Another, similar, available.) 112. Faber-Castell 57/87 --- Almost new, 10 inch rule in case and box. Scales: K, A [B, CI, C] D, L, and, on the back of the slide, S, ST, T. 10 inch scale on the top beveled edge. White plastic with blue scale highlights. Marked: Rietz Schul-Rechenstab. Very good condition. Clear plastic slip case. Green and black outer box has shelf wear. (Another, with scale variation, available.) 113. Faber-Castell 62/83 -- New in box, 5 inch Novo-Duplex rule with case, instructions, and box. This is the 5 inch version of the F/C 2/83. Scales: K, T1, T2, DF [CF, CIF, CI, C] D, S, ST, P, and, on the other side, LL03, LL02, LL01, W2 [W2', L, C, W1'] W1, LL1, LL2, LL3. White plastic with green highlighted scales. Green leather slip case. Instructions in Norwegian (I think). Green, black, and white outer box. Everything new. (Others available.) 114. Faber-Castell 64/87 Rb (With Addiator) --- New in case (there were no boxes originally), 5 inch rule with Addiator attached to the back, in green zippered case. Scales: L, K, A [B, CI, C] D, P, S, T, and, on the back of the slide, [LL1, LL2, LL3]. 5 1/2 inch scale on the top, beveled edge. White plastic. Marked: A.W. Faber-Castell 67/87 Rb Rietz, Made in Germany. On the back is a very nice Castell Addiator, a metal, mechanical calculator with 6 pull-down columns, a clearing bar, and equivalents and formulas. A stylus for the calculator is in a built-in holder in the beautiful, green, zippered case, marked, Faber-Castell. This is a terrific set, and it's new. (Others available.) 115. Faber-Castell 67/54 --- 5 inch Darmstadt rule with case. Scales: L, K, A [B, CI, C] D, P, S, T, and, on the back of the slide, [LL1, LL2, LL3]. 14 cm scale on the top beveled edge. White plastic. Very nice brown leather flip-top case. Rule and case in very good condition. 116. Faber-Castell 67/54b --- New in box, 5 inch Darmstadt rule with case, instructions, and box. Scales: L, K, A [B, CI, C] D, P, S, T, and, on the back of the slide, [LL1, LL2, LL3]. 5 inch scale on the top beveled edge. 14 cm scale on the back. White plastic. Green slip case. 27-page manual. Green, black, and white outer box. Everything new. (Others available.) 118. Faber-Castell 67/87 Rb (With Addiator) --- New in case (there were no boxes originally), 5 inch rule with Addiator attached to the back, in green zippered case. Scales: L, K, A [B, CI, C] D, S, ST, T. 5 1/2 inch scale on the top, beveled edge. White plastic. Marked: A.W. Faber-Castell 67/87 Rb Rietz, Made in Germany. On the back is a very nice Castell Addiator, a metal, mechanical calculator with 6 pull-down columns, a clearing bar, and equivalents and formulas. A stylus for the calculator is in a built-in holder in the beautiful, green, zippered case, marked, Faber-Castell. This is a terrific set, and it's new. (Others available.) 119. Faber-Castell 67/87 --- New in box, 5 inch Rietz rule in green case with instructions and box. Scales: K, A [B, CI, C] D, L, and, on the back of the slide, [S, ST, T]. 5 inch scale on the top beveled edge. White plastic. Green slip case. 23-page manual. Green, black, and white outer box. Everything new. (Others, both new and used, available.) 120. Faber-Castell 111/54 --- New, 10 inch Darmstadt rule with case. Scales: K, A [B, CI, C] D, P, S, T, and, on the back of the slide, [LL1, LL2, LL3]. 10 inch scale on the top beveled edge. L scale on the bottom edge. Instructional diagrams on the back. White plastic. Clear plastic slip case. Everything new. (Others available.) 121. Faber-Castell 111/54 A (With Addiator) --- New in case, 10 inch rule with Addiator attached to the back, in green slip case. Scales: K, A [B, CI, C] D, P, S, T, and, on the back of the slide, [LL1, LL2, LL3]. L scale on the bottom edge. 10 inch scale on the top, beveled edge. White plastic. Marked: A.W. Faber-Castell Addiator 111/54 A Darmstadt, Made in Germany. On the back is a very nice, built-in Castell Addiator, a metal, mechanical calculator with 6 pull-down columns, a clearing bar, and equivalents and formulas. The Addiator has a few marks on it. A stylus for the calculator is in a built-in holder in the green, slip case, marked, Faber-Castell. This is a very nice, usual set. 122. Faber-Castell 152/82 ---10 inch rule, no case. Scales: L, K, A [B, CI, C] D, LL1, LL2, LL3, and, on the other side, T1, T2, DF [CF, CIF, CI, C] D, S, ST, P. White plastic with white end pieces. Some scales pink highlighted. New, but a little dirty with a few light scratches. 123. Faber-Castell 157/87 --- New in case, 10 inch Rietz rule with instructions and case. Scales: K, A [B, CI, C] D, L, and, on the back of the slide, [S, ST, T]. 27 cm scale on the top beveled edge. White plastic. 17 page manual. Clear and green plastic slip case. Everything new. 124. Faber-Castell 157/89 --- Brand new, 10 inch Castell Log-Log rule in case, with instructions. Scales: K, A [B, L, CI, C] D, S, ST, T1, T2, and, on the back of the slide, LL2, S', LL3. A 27 cm scale on the top beveled edge. Wide cursor with five indicator lines. Rule is white plastic. Ivory-colored, hard plastic slip case. Instructions, in Dutch. Everything is brand new. A beautiful set. (Others available.) 125. Faber-Castell 167/87 --- 5 inch rule. Scales: K, A [B, CI, C] D, L, and, on the back of the slide, [S, ST, T]. 14 cm scale on top beveled edge. White plastic. Very good condition. (Another available.) 126. Faber-Castell 360 --- Excellent 10 inch rule in case. Scales: A [B, C] D, and, on the back of the slide, [S, L, T]. 10 inch scale in the top beveled edge. 29 cm scale on the bottom edge. White laminate on pearwood. D.R. Patent No. 206428. Equivalents on the back. Excellent condition. Black, two-piece slide box. (Others, similar, available.) 127. Faber-Castell 375 --- 10 inch rule in case. Scales: K, A [B, C] D, L, and, on the other side of the slide, [S, S&T, T]. 10 inch scale on the top beveled edge. 28 cm scale on the bottom edge. Equivalents on the back. white laminate on pearwood. Heavy metal-framed cursor. Rule marked D.R.Patent No. 206428. Made in Bavaria.Very good condition. Two-piece black slide box worn, but solid and marked with original labeling. 128. Faber-Castell 397 --- Beautiful, essentially new 5 inch rule in box. Scales: K. A [B, CI, C] D, L, and, on the back of the slide, [S, S&T, T]. 5 inch scale on the top beveled edge. 16 cm scale on the bottom edge. White laminate on pearwood. Heavy-framed metal cursor. Equivalents on the back. Made in Bavaria. Black slide box, marked A.W. Faber, D.R.P., sows wear, but the beautiful rule is essentially new. 129. Faber-Castell Instructions, 67/ Series --- 11-page instruction manual for the 67/ series rules. In German. Very good condition. 130. Fowler's Universal Calculator --- 3 3/8 inch diameter, large, pocket-watch style circular slide rule, in case. Marked: Fowler's Universal Calculator, Patent, Fowler & Co., Manchester (England). Silver front, black back. Two knobs. Excellent condition. Original leather case. A beautiful instrument. 131. Flying Fish 1005--- 10 inch Flying Fish rule, made in Shanghai. No case. Scales: K, AI, A [B, tg/ctg, sin/tg, sin/cos, C] D, something in Chinese, DI, P, and, on the other side, Ln-1, Ln0, Ln1, A [B, 1-cos, 1/2 sin2] D, Lg, 1/60, 1/360. White plastic with beige end pieces and cursor guides. New, but with some light scratches. 132. Flying Fish 1016--- Very unusual, new in box, 10 inch Flying Fish, Log-Log Duplex Slide Rule for Ventilating Duct, made in Shanghai. Box/case and instructions. Scales: (Kv), Kv sigma ?, Dq, b [a, Z, v, Hm, F, D] Q, G, degrees F, degrees C, and, on the other side, LL01, LL02, LL03, A [B, T, L, CI, S, C] D, LL3, LL2, LL1. White plastic with beige end pieces and cursor guides. Brown, two-piece slide box/case. Instructions in Chinese and English. (Another available.) 133. Flying Fish 1205 --- New, 4 1/2 inch rule in case. Scales: T, K, A [B, L, CI, C] D, S, SRT. 5 inch and 12 cm scales on the back, along with formulas in both English and Chinese. White plastic. Clear case. (Another available.) 134. Gilson Binary Circular --- 8 1/4 inch circular, The Binary Slide Rule, Made in U.S.A. Copyrights 1931 and 1940. Multiple scales on both sides. One cursor on one side and two on the other. White on metal with some scales yellow highlighted. Some yellowing and a little wear on a few spots, but everything is readable and very useable. 135. Gilson Midget Circular --- Like new 4 1/4 inch midget circular rule, in case. Multiple scales on both sides. One cursor on one side, two on the other. White on metal. Copyrights 1931 and 1936. Made in U.S.A. (Others available.) 136. Gilson Midget Circular Manual -- Small, 16-page manual: The Slide Rule Manual, Instructions for Using the Midget Slide Rule, by Dietzgen. Good condition. 137. Globemaster 62200 --- As new 5 inch rule with case and instructions. Scales: A [B, CI, C] D, K. White plastic. Plastic cursor, somewhat loose. Instructions and flip-top plastic case. Everything as new. (Another available.) 138. Graphoplex 612 --- 5 inch rule, in case. Scales: B3, B2 [b2, a, b] B, L, and, on the back of the slide, [S, S&T, T]. 13 cm scale on the top beveled edge. White plastic. Very good condition. Marked Valmet on the back on leather slip case. 139. Graphoplex 1614 --- New in case, 10 inch rule with case and instructions. Scales: LL2, LL3, L, A [B, K, CI, C] D, S, ST, T. 27 cm scale on the top beveled edge. White plastic. Made in France. Red plastic, two-piece slide case. Instructions in French. Everything new. (Others available.) 140. Graphoplex 1694 --- New in box, 10 inch rule with case, instructions, equivalents rule, and outer box. Scales: P, K, A, DF [CF, L, CI, C] D, S, SRT, T. 27 cm scale on the top beveled edge. White plastic. Made in France. Separate equivalents rule. Red plastic, two-piece slide case. Instructions in French. Outer box. Everything new. (Others available.) 141. Guedon Metal Pocket Rule --- 5 inch metal rule in case. Scales: A [B, CI, C] D. Fraction/decimal equivalents on the front, under the fixed sections. 5 inch and 12 cm scales on the back. Made of thin, but non-flexible metal, painted white. Marked: Guedon, Camden, New Jersey; Made in U.S.A. Perhaps made by Richardson. The black leather slip case is worn, but the rule is in very good condition. 142. Guedon Circular --- 4 1/4 inch circular in case. Marked E.C. Guedon, Camden, N.J. Is actually a Gilson, copyrighted 1919. Very good condition -- just some slight discoloration. White on metal. Snap case is in very good condition. Hemmi --- See, Sun Hemmi. 143. Hughes Owens 1762 --- 5 inch rule in case. Scales: A [B, C] D, and, on the back of the slide, [S, L, T]. 5 inch scale on the top beveled edge. White laminate on bamboo. Marked: The Hughes Owens Co. Limited, No, 1762. Sun Hemmi, Made in Occupied Japan. Rule in good condition. Brown leather flip-top case, marked The Hughes Owens Co., Ltd. 1762; very good condition -- just a few slight scrapes. 144. Hughes Owens 1771 --- 10 inch rule, no case, no cursor. Scales: A [B, CI, C] D, K, and, on the back of the slide, [S, L, T]. 10 inch scale on top, beveled edge and 27 cm scale on bottom edge. No cursor. Rule in poor shape -- yellowed, crazed, chipped, scratched, and dirty. 145. Hughes-Owens 341 3425 --- 5 inch rule, made by Sum Hemmi, in case. Scales: A [B, CI, C] D, K, and, on the back of the slide, [S, L, T]. 5 inch scale on the top beveled edge. White laminate on bamboo. Rule in very good condition, just slightly dirty (cleanable). Brown leather flip-top case, marked Hughes-Owens, in good condition, some wrinkles. 146. Indeco --- 5 inch rule, leather case. Scales: A [B, C] D. Plastic scales in a narrow (1 inch) metal frame. Marked: Indeco Rule. Very good condition. Brown leather slip case, solid, but some wear, marked Socony Vacuum Oil Company, Inc. (Another available.) 147. Iwa 5125 --- 5 inch rule in a special notebook case. Scales: K, A [B, CI, C] D, sin, sin/tg, tg. White plastic, semi flexible. Fits into a 6 1/2 inch X 4 1/2 inch, pocket-size notebook (included) that has a slot for the rule and one for a pen or pencil. An A.W. Faber Castell mechanical pencil is included. Several sheets of 6-ring graph paper are included as well. Everything is in very good condition. 148. Jason 802 --- 10 inch rule in brown leather flip-top case. Scales: LL0, LL00, A [B, K, CI, C] D, S, ST, T, and, on the other side, L, LL1, DF [CF, CIF, CI, C] D, LL3, LL2. White laminate on bamboo. Marked: Jason No. 802, Made in Japan. Frameless plastic cursor. Rule in very good condition. Brown leather flip-top case, marked Jason, is in very good condition, just a few rubs and an owners initials. 149. K+E Cooke Radio Slide Rule --- 10 inch, Cooke Radio Slide Rule. Scales LC, A [B, T, ST, S] D, DI, and, on the other side, L, DF [CF, CIF, CI, C] D, 2pi. Patent #'s: 1,930,852; 2,168,056; 2,170,144. Serial # 852177. White laminate on mahogany. Cursor guides cracked (will be replaced). Otherwise, in very good condition. Brown leather flip-top case, missing flip top and in poor condition. But the rule is very good. (Another available.) 150. K+E Mannheim Slide Rule --- 10 inch rule. No model number. Heavy metal cursor. Case. Scales: A [B, C] D (not marked) and, on the other side of the slide, [S, L, T]. White paint on mahogany. Equivalents on the back. Heavy metal cursor. Very good condition. 151. K+E Mannheim Slide Rule --- 10 inch rule. No model number. Heavy metal cursor. Case. Scales: A [B, C] D (not marked) and, on the other side of the slide, [S, L, T]. 10 inch scale on the top beveled edge. 26 cm scale on the bottom edge, continued to 52 cm in the slide well. White laminate on mahogany. Equivalents on the back. Cursor marked Keuffel&Esser Co, New-York. 152. K+E Short Base Triangulation Slide Rule --- 20 inch rule in case. Scales: Auxiliary Angle "A" [Vertex Angle "t," Base "b"] Range "R," and, on the back of the slide, [Vertex Angle "t," Base "b"]. White paint on birch? attached to a mahogany base. Interesting looking. Marked U.S. Cursor has two lines, one for Meters, one for Yards. Very good condition. Tan leather flip-top case, missing the flip top. 153. K+E 4031 --- Excellent 5 inch rule in case and box. Scales (unmarked): A [B, C] D, and, on the back of the slide, [S, L, T]. 5 inch scale on the top beveled edge. 13 cm scale on the bottom edge. Equivalents on the back. White laminate on mahogany. Rule marked Keuffel & Esser Co. N.Y., Pat. June 5, '00. Frameless cursor. Excellent condition. Tan leather flip-top case is in very good condition, with a name and a few cosmetic flaws. Original green slide box -- marked, Mannheim Slide Rule, K+E Co., 5 Inches, 4031, Leather Case -- is worn but all there. Overall, a nice set. 154. K+E N4053-3 --- Like-new, 10 inch rule, in case. Scales: A [B, CI, C] D, K and, on the back of the slide, [S, L, T]. Also, a 10 inch scale on the top, beveled edge and a 25 cm scale on the bottom edge. Rule patent #1,934,232. White laminate on mahogany. Serial #611587. Equivalents label on the back. Tan leather flip-top case just a few small marks, otherwise almost new, as is the rule. (Others available.) 155. K+E 4053-3S Case --- Very good condition, mottled with tape marks. 156. K+E 4053-5 --- Excellent, 20 inch rule in case. Scales: A [B, CI, C] D, K, and, on the back of the slide, [S, L, T]. 20 inch scale on the top beveled edge. 50 cm scale on the bottom edge. White laminate on mahogany. Pat. 1,934,232. Serial # 830233. Equivalents table on the back. Excellent condition. The black leather flip-top case is virtually new. A very nice set. (Others available.) 157. K+E 4054 Case --- Black cardboard, leather-covered case with flip top. Very good condition. 158. K+E 4055 --- 10 inch rule in case. Scales: A [B, C] D, and, on the back of the slide, [S, L, T]. White laminate on mahogany. Serial #:795738. Rule patent: 1,934,232. Rule in very good condition. Cursor guides broken and glass chipped. Equivalents table on the back. Black, leather-covered, flip-top, snap case, K&E Favorite, Trade Mark, Slide Rule, 4055. (Another available.) 159. K+E 4058 -- Nice, early(?), 10 inch, Student's Slide Rule, with box and instructions. Scales: A [B, C] D, and, on the back of the slide, [S, L, T]. Equivalents tables on the back. Thin plastic cursor needs a little tightening. Tan wood, no paint. Very good condition. Instructions, Elementary Instructions for Operating the Slide Rule, copyright 1909, have small tears on the top and bottom edges. The black, two-piece, slide case, marked in gold, Keuffel & Esser Co., Student's Slide Rule, is in very good condition. 160. K+E 4058C --- 10 inch Beginner's Slide Rule in black, slide box. Scales: A [B,C] D, and, on the back of the slide, [S, L, T]. Tan wood, no paint. Cursor is clear plastic. Equivalents table on back. Rule in very good condition except for a small crack on each end of the slide. Box, marked Keuffel & Esser Co. Beginners Slide Rule 4058C, is taped and missing one end. (Another, similar, is available.) 161. K+E 4058C Case --- Good condition. Some surface tears. 162. K+E 4058W --- Like-new 10 inch Beginner's Slide Rule in black, cardboard, slide box, with instructions. Scales: A [B, C] D, and, on the back of the slide, [S, L, T]. White paint on bamboo?? Rule in like-new condition. Box is very good, with a few rubs and the covering coming a little loose at one end. Box marked, K&E Beginner's Slide Rule 4058 W. Instructions, Elementary Instructions for Operating the Slide Rule, Keuffel & Esser Co., New York, copyright 1928, are in excellent shape, just folded to fit in the box. A very nice set. (Others, similar, available.) 163. K+E 4059 --- Uncommon, 8 inch, Beginner's Slide Rule. Scales: A, [B, C] D. Wood with irregular dark staining. Chip out of back. Equivalents on the back. 164. K+E 4070-3 --- Almost new, 10 inch rule in black leather case with manual and outer box. Scales: K, A [B, T, ST, S] D, DI, and, on the back, DF [CF, CIF, CI, C] D, L. Patent#s: 2,500,460; 2,168,056; 2,170,144. Serial # 930692. White laminate on mahogany. Has the edge strips of laminate like many of the 4081-3's. Very good condition. Black leather flip-top case, marked K+E, is essentially new. 88-page manual is new. The green outer box is damaged, but the rule and contents are very nice. (Others available.) 165. K+E 4070 Manual --- 5 inches x 8 inches. The Polyphase Duplex Trig Slide Rule No. 4070, a Manual. By Kells, Kern, and Bland. Copyright 1939. 90 pages. Orange cover. Good condition -- some dirt and staining on the cover. Contains pictures of the following K+E rules: 4070 Polyphase Duplex Trig, Royal Lance Electrical, Surveyor's Duplex, Stadia, Chemist's Duplex, Power Computing, Kurtz Psychrometric, and Ever-There 4097 C and 4097 D. 166. K+E 4071-3 --- 10 inch rule in tan, leather, flip-top case. Scales: K, A [B, T, ST, S] D, DI, and, on the back, DF [CF, CIF, CI, C] D, L. Rule patents: 1,930,852; 2,168,056; 2,170,144. Cursor patent # 2,086,502. White laminate on mahogany. Serial # 797289. Very good condition, just a little yellowing. The tan leather case, marked K+E Slide Rule, is in very good shape, except for some dirt marks and a little weakness at the flip-top hinge points. 167. K+E 4080-3 --- Excellent, 10 inch Log Log Duplex Trig rule in black leather case, with box. Scales: LL01, K, A [B, T, ST, S] D, L, LL1, and, on the other side, LL02, LL03, DF [CF, CIF, CI, C] D, LL3, LL2. White laminate on mahogany. Serial # 470265. Patent #'s: 1,930,852; 2,168,056; 2,170,144; 2,285,722. Excellent condition. Black leather flip-top case in very good condition. Original green slide box in excellent condition. Includes small brochure, How to Take Care of Your K&E Slide Rule, Duplex. (Others, including scale variations, available.) 168. K+E 4080-5 --- Excellent, 20 inch rule in case. Scales: LL0, LL00, A [CF, CIF, CI, C] D, DI, K, and, on the other side, L, LL1, DF [B, T, ST, S] D, LL3, LL2. Rule patents: RE.20.984; 1,930,852; 2,168,056; 2,170,144. Cursor patent: 2,086,502. Serial # 030702. One cursor guide has a single, repaired cracked. White laminate on mahogany. Excellent condition. Tan leather flip-top case in very good condition, just some creases on the flip top. 169. K+E 4081-3 --- Almost new, 10 inch Log Log Duplex Decitrig rule, tan leather, flip-top case. Scales: LL01, K, A [B, T, ST, S] D, L, LL1, and, on the back, LL02, LL03, DF [CF, CIF, CI, C] D, LL3, LL2. Copyright 1947. Rule patents: 1,930,852; 2,168,056; 2,170,144; 2,285,722; and 2,422,649. Serial # 714384. No cursor patent number or other markings, except for a dot. Rule is white laminate on mahogany. Almost new. Black K+E leather case has two holes in the flip top, but is otherwise fine. The rule itself is almost new. (Others, including scale variations, available.) 170. K+E 4081 Manual --- K+E Manual, Log Log Duplex Decitrig Slide Rule, No. N4081. By Kells, Kern, and Bland. 5 inches X 8 inches. Rose and maroon softcover. 123 pages. Copyright 1947. Very good condition. 171. K+E 4081 Manual --- K+E Slide Rule Manual, The Log Log Duplex Decitrig, No. 4081. By Kells, Kern, and Bland. 5 inches X 8 inches. Orange softcover. 102 pages. Copyright 1939. Very good condition. Includes pictures of the 4081, the Power Computing Slide Rule, the Kurtz Psychrometric Slide Rule, and the Ever-There 4097C and 4097D Slide Rules. 172. K+E N4083-3 --- Excellent, 10 inch Log Log Duplex Vector, with case. Scales: LL02, LL03, DF [CF, CIF, CI, C] D, LL3, LL2, and, on the other side, L, LL01, LL1, A [B, T, ST, S] D, Th, Sh2, Sh1. White laminate on mahogany. Patent #'s: 2,500,460; 2,168,056; 2,170,144; 2,285,722; 2,422,649.. Serial # 697182. Excellent condition. Black leather flip-top K+E case is solid, with just a little dirt. (Others, including scale variations, available.) 173. K+E N4083 Supplementary Manual: --- K+E Supplementary Manual, Log Log Duplex Vector, No. 4083. 5 inch X 7 1/2 inch green softcover. 37 pages. This booklet explains only the application of the plane and hyperbolic trigonometric scales to vector calculations. It is a supplement to the instructions covering the Log Log Duplex Decitrig Slide Rule No. N4081. Excellent condition. (Others, similar, available.) 174. K+E 4088-3 --- Unusual (no B scale), early 10 inch rule in case. Scales: K, A [S, T, CI] D, L, and, on the other side, DF [CF, CIF, C] D. Rule patents: June 5 '00 and Dec. 22 '08. Frameless cursor. No serial #. White laminate on mahogany. Rule in good condition -- a few marks. Case/box, K+E Polyphase Duplex, has some wear. (Others available.) 175. K+E 4088-3 --- Very nice, 10 inch rule in tan, leather, flip-top case (4088-3S). Scales: K, A [B, S, T, CI] D, L, and, on the back, DF [CF, CIF, C] D. Rule patent 1,930,852. Serial # 511737. White laminate on mahogany. Case, K+E Polyphase Duplex, 4088-3S, is worn and the flip-top is missing. But the rule itself is very nice. (Others available.) 176. K+E 4091-3 --- Excellent, 10 inch rule in tan, leather, flip-top case (4091-3S, Log Log Decitrig). Scales: LL0, A [B, K, CI] T, S2, S1, and, on the other side, L, LL1, DF [CF, CIF, CI, C] D, LL3, LL2. Rule patent #'s: 1,488,686 and 1,930,852. Serial # 563610. White laminate on mahogany. Rule in excellent condition. Case mottled , but very solid. (Others available.) 177. K+E 4092 --- 10 inch rule, in case. Scales: LL1, LL2, LL3 [C, T, CI] D, L, and, on the other side, A [B, S, C] D. Rule patent: June 5 '00, Dec. 22 '08. Cursor patent: 8.17.15. (?) White laminate on mahogany. Mahogany on the edges. Framed cursor. Rule in very good condition, slight yellowing. Very good tan leather flip-top case. (Another available.) 178. K+E 4092-3 --- Virtually new, 10 inch rule in black, leather-covered flip-top box/case. Scales: LL0, A [B, S, T, C] LL3, LL2, LL1, and, on the other side, K, DF [CF, CIF, CI, C] D, L. Rule patents: 1,488,686 and 1,930,852. Serial # 509058. White laminate on mahogany. Virtually new. Case/box, K&E Log Log Duplex Slide Rule 4092-3, has some fading and a very little surface splitting, but is very solid. Beautiful rule. (Others available.) 179. K+E 4094 --- Very nice, in box, 10 inch Merchant's rule, with box, case, and instructions. Scales: DF [CF, CI, C] D. 10 inch scale on the top beveled edge. 25 cm scale on the bottom beveled edge. Conversion factors on the back. Serial # 474810. White laminate on mahogany with a white plastic back. Excellent condition, just a little yellowing. Green K+E case with leather flip top is new. Instruction brochure for Merchant's rule is included. The original K+E green slide box, labeled K+E 4094 Merchant's Slide Rule, is in very good condition - just slight surface/shelf wear. This is a very, very nice set. 180. K+E 4095-3 --- Almost new, 10 inch Merchant's rule. Soft cloth case. Scales: DF [CF, CI, C] D, and, on the other side, [CI] D. White laminate on mahogany. Pat. # 1,930,852. Serial # 833000. Just a few light scratches, otherwise, beautiful. Gray cloth case. 181. K+E 4097 C --- 5 inch rule in leather case. Scales: A [B, CI, C] D, K, and, on the back of the slide, [S, L, T]. Patent 1,930,852. Thin white plastic. The rule is dirty, very slightly bowed, and has chipped corners. On the back are 13 cm and 5 inch scales. Serial # 64966. Brown leather slip case, marked K&E Co., solid but worn. (Another available.) 182. K+E 4097D --- 5 inch rule, no case. Scales: A, DF [CF, CI, C] D, K, and, on the back of the slide, [S, B, L, T]. 52 and 13 cm scales on the back. Rule patent # 1,875,927. Serial # 030325. White celluloid. Several broken corners and cracks, but the face of the rule is intact and not bad looking, and the cursor is OK. However, the rule is fragile -- to be looked at, not handled. 183. K+E 4097D Cursor Only --- The 5 inch rule -- scales A, DF [CF, CI, C] D, K -- disintegrated in my hands. It was serial # 112664. The cursor is dirty, but looks cleanable. 184. K+E 4098A --- 5 inch rule in tan, leather slip case. Scales: A [B, C] D, and, on the back of the slide, [S, L, T]. 5 inch and 13 cm scales on the back. Serial # 20050. Thin white plastic. Very good condition. Tan, leather K+E slip case in very good condition. (Others available.) 185. K+E N-4100 --- 10 inch Stadia rule, in case. Scales: R [H, HC, V] A, and, on the other side of the slide, [C, B]. 10 inch scale in tenths on top beveled edge. 25 cm scale on bottom edge. White laminate on mahogany. Patent 1,934,232. Serial # 280378. Instructions on the back. Very good condition. Black box/case in fair condition. 186. K+E 4143 --- 10 inch, Kissam Stadia Rule, in case with separate plastic rule with instructions on it. Scales: R1 [V1, HC, V2] R2. 10 inch scale on the top beveled edge. 25 cm scale on the bottom beveled edge. Conversion factors on the back. White plastic. Serial # 396286. Separate flexible plastic rule marked, K+E Instructions for Kissam Stadia Rule No. 68 1486. Tan leather flip-top case with belt loop. Everything in excellent condition. 187. K+E 4160 --- 10 inch, Chemist's Duplex Slide Rule, in box/case. Scales: Sought (Acid, Base, Salt) [Given, C] D, and, on the other side, Sought (Oxide Elem.) [Given, CI] D. White laminate on mahogany. Patent # 1,930,852. Serial # 500073. Rule in good condition except for a bad spot (acid drip?) on the Sought (Acid, Base, Salt) scale where six items are unreadable. They can be worked with, however, by looking at the same area of the adjacent Given scale. The box/case is black with a snap flip top. It is marked Chemist's Duplex Slide Rule 4160, has an atomic weight table pasted on, and is well worn. 188. K+E 4161-1 --- 5 inch rule, green leather case, instructions, in original slide box. Scales: K, DF [CF, L, CI, C]D, A, and, on the back of the slide, [T, ST, S, C]. White plastic. Serial # 011085. Very good condition. Green leather slip case (K+E), in good condition, just a few indentation marks. Manual, 5 inches X 8 inches, green cover, 92 pages, copyright 1952 -- good condition, but folded to fit in box. Green slide box in good condition, just a few scuffs. 189. K+E 4161-3 --- 10 inch rule, green case. Scales: K, DF [CF, L, CI, C]D, A, and, on the back of the slide, [T, ST, S, C]. 10 inch scale on the top beveled edge and 25 cm scale on the bottom beveled edge. White plastic. Serial # 006572. Very good condition. Green slip case is broken. 190. K+E 4161 Manual --- K+E 4161 Slide Rule Manual. 5 inches X 8 inches. Red and gray cover. 92 pages. Very good condition -- just folded to fit in box. Copyright 1952. 191. K+E 4181-3 --- Very nice,10 inch rule in green leather flip top case. Scales: LL01, L, K, A [B, T, SRT, S] D, DI, LL1, and, on the other side, LL02, LL03, DF [CF, CIF, CI, C] D, LL3, LL2. White plastic. Serial # 006027. Copyright 1947. Rule in very good condition, as is the green leather flip top case -- only a few small marks on the case. 192. K+E N9081-3, Doric --- 10 inch rule, Doric, complete with case, box, manual label. Scales: LL01, K, A [B, T, ST, S] D, L, LL1, and, on the other side, LL02, LL03, DF [CF, CIF, CI, C] D, LL3, LL2. White plastic. Serial # 13992. Very good condition, just a little dirt. Black leather K+E Doric flip-top case with just a slight amount of wear. Green slide box in very good condition, just some slight surface wear and marks. Plus a label that was used to explain that the N4081 Log Log Decitrig Manual could be used for the N9081 by just making a few slight changes. An appropriate 4081 manual is also available. 193. K+E 68 1100, Deci-Lon --- Almost new, 10 inch Deci-Lon rule in tan leather, flip-top case. Scales: Ln-3, Ln-2, Ln-1, Ln-0, A [B, T, SRT, S, C] D, DI, K, and, on the other side, Sq1, Sq2, DF [CF, CIF, L, CI, C] D, Ln0, Ln1, Ln2, Ln3. White plastic. Serial # 251636. Almost new -- just a name scratched into one of the metal end pieces. Tan, flip-top leather case, marked K+E Deci-Lon in gold, also almost new. Another beautiful set. (Others available.) 194. K+E 68 1100, Deci-Lon Case --- Tan, flip-top Deci-Lon case in good condition -- a few marks and scuffs. 195. K+E 68 1130 --- Almost new, 5 inch Deci-Lon. Scales: Ln-3, Ln-2, Ln-1, Ln-0, A [B, T, SRT, S, C] D, DI, K, and, on the other side, Sq1, Sq2, DF [CF, CIF, L, CI, C] D, Ln 0, Ln1, Ln2, Ln3. White plastic. Pat#'s: 2,422,649; 2,500,460; 2,534, 695. Serial #021830. No case. 196. K+E 68 1210 --- Excellent 10 inch Log Log Duplex Decitrig rule, tan/orange leather case. Scales: LL01, L, K, A [B, T, SRT, S] D, DI, LL1, and, on the back, LL02, LL03, DF [CF, CIF, CI, C] D, LL3, LL2. Copyright 1947. Rule patents: 2,500,460; 2,168,056; 2,170,144; 2,285,722; and 2,422,649. Serial # 630559. No cursor patent number or other markings, except for a dot. White laminate on mahogany. Excellent condition. Tan/orange K+E leather case, marked K+E, very good condition. 197. K+E 68 1497 --- Like-new 10 inch rule, in like-new tan leather case, with like-new manual, with like-new brochure, and worn box. Scales: K, A [B, T, SRT, S] D, DI, and, on the other side, DF [CF, CIF, CI, C] D, L. Serial # 540445. White laminate on mahogany. White strips on the edges. Pat. #'s: 2,500,460; 2,168,056; 2,170,144. Marked with a small US. Tan leather, flip-top case. Manual: K+E Slide Rule Manual, Polyphase Duplex Decitrig, Manual No. 68 2055, Old No. 4187U; green cover; 87 pages; copyright 1962. Small brochure: How to Take Care of Your Slide Rule by K+E. Green slide box is worn, everything else is like new. 198. K+E 68 1617 --- New, 10 inch, 68 1617 rule in green leather case. Scales: A [B, CI, C] D, K. 10 inch scale on the top beveled edge. 25 cm scale on the bottom beveled edge. White laminate on mahogany with a white plastic back piece. Conversion factors on the back. Serial # 200636. Green leather, flip-top case, marked K+E. This set is beautiful, new. (Another, used, available.) 199. K+E 68 1622 Box --- Green outer slide box, marked K+E 68 1622 Polyphase Slide Rule, Old 4053-3. Solid, but with surface tears. 200. K+E 68 1892 --- Almost new, 10 inch K-12 Prep rule in case. Scales: K, A [B, S, CI, T, C] D, L. White plastic with dark green end pieces. Plastic slip case. (Others available.) 201. K+E Case -- Black leather flip-top case for a 10 inch K+E rule. Marked K+E. Good condition, but some scuff and wear marks. 202. K+E Magnifier Case --- Excellent, tan leather, flip-top case, marked K+E, with expanded section for a magnifier. Large enough for any 10 inch K+E rule with magnifier. Excellent condition, just a very few signs of use. 203. K+E Magnifier --- Fits on small, frameless cursors. 204. K+E Duplex Magnifier --- Patent No. 2556806. Excellent condition. Marked K+E.. 205. K+E Elementary Slide Rule Instructions --- 6 inch X 9 inch booklet, Elementary Instructions for Operating the Slide Rule - Mannheim Type. Published by K+E. Copyright 1928. 16-page booklet in good condition with two small punched holes, probably for inserting into a notebook. A very nice instruction book. (Another available.) 206. K+E Elementary Slide Rule Instructions --- Elementary Instructions for Operating the Slide Rule. Published by K+E. Copyright 1909. 4 pages. Torn. 207. K+E Log Log Duplex Trig Manual --- Copyright 1948. 123-page manual. 5 inch X 8 inch. Maroon and rose-colored cover. Excellent condition. Manual N4080. By Kells, Kern, and Bland. 208. K+E Log Log Duplex Decitrig Manual --- Copyright 1943. 101-page manual. 5 inch X 8 inch. Rose-colored cover. Very good condition. Manual No. 4081. By Kells, Kern, and Bland. Includes drawings of the 4081, 4097C, and 4097D rules. (Others available, including 1945 version.) 209. K+E Log Log Duplex Decitrig Manual --- Copyright 1947. 123-page manual. 5 inch X 8 inch. Gray and orange cover. Good condition. Manual No. N4081. By Kells, Kern, and Bland. Includes drawing of the N4081. 210. K+E Log Log Duplex Decitrig Manual --- Copyright 1955. 126-page manual. 5 inches X 8 inches. Green cover. Very good condition. Manual No. 4081. By Kells, Kern, and Bland. Includes drawing of the 4081-3. 211. (K+E) Log Log Duplex Slide Rule Manual --- The Log Log Duplex Slide Rule, A Self Teaching Manual with Tables of Settings, Equivalents and Gauge Points. By William E. Breckenridge. For the K+E N4092-3 rule. Pictures of the N4092-3 as well as The Roylance Electrical, Surveyor's Duplex, Merchant's, Chemist's, Mannheim, Polyphase, Polyphase Duplex, Log Log Duplex, and Stadia. 138+pages. 5 inch X 8 inch. Rose-colored cover. Some tears and tape on the cover, and a few bent page corners inside. Contents are OK, however. Copyright 1926. (Others available.) 212. (K+E) Log Log Duplex Slide Rule Manual --- The Log Log Duplex Slide Rule, A Self Teaching Manual with Tables of Settings, Equivalents and Gauge Points. By William E. Breckenridge. For the K+E N4092-3 rule. Pictures of the N4092-3 as well as The Roylance Electrical, Surveyor's Duplex, Merchant's, Chemist's, Mannheim, Polyphase, Polyphase Duplex, Log Log Decitrig, and Stadia. 138+pages. 5 inch X 8 inch. Rose-colored cover with some dirt. Otherwise, very good condition. Copyright 1932. (Others available.) 213. (K+E) Log Log Vector Slide Rule Manual --- The Log Log Vector Slide Rule. Designed by M.P. Weinbach and A.F. Puchstein. 21 pages. Rose-colored soft cover. Copyright 1930. Picture of the K+E 4093-3. Excellent condition except for some pencil marks and dirt on the covers -- looks cleanable. 214. (K+E) The Mannheim Slide Rule Complete Manual --- Copyright 1891. Covers rules 4031 and 4041. A sheet tipped into the front gives additional instructions for "newer rules, Nos. 4041F to 4051." 32 pages. Tan soft cover. Cover has rips and tears, but the contents are fine. Includes a listing and prices of K+E Calculating Devices -- all the early slide rules, Reckoning Machines, Thacher's, Fuller's, Sperry's, Charpentier's, Boucher, Goodchild Mathematical Charts, Webb's, etc. 215. (K+E) The Mannheim Slide Rule Manual --- The Mannheim Slide Rule, Nos. 4031S, N4035S, N4041, and 4051. A Self Teaching Manual with tables of settings, equivalents, and gauge points. 77 pages. 5 inches X 8 inches. Rose-colored cover. Copyright 1938. Includes pictures of the following slide rule models: Power Computing, Kurtz Psychrometric, Ever-There 4097C and 4097D, Roylance Electrical, Surveyor's Duplex, K+E Stadia, and Chemist's Duplex, as well as the N4041 and a K+E Engineer's Transit. The booklet is in very good condition. (Others available.) 216. (K+E) The Mannheim and the Duplex Slide Rules, Complete Manual --- The Mannheim and the Duplex Slide Rules, Complete Manual. By Wm. Cox. Published by K+E, 1917. 58 pages, plus 11 page addition -- Supplement, The Slide Rule and Plane Trigonometry by J.M. Willard and a section on K+E slide rules, picturing: Mannheim, Duplex, Polyphase, Stadia, Roylance Electrical, Surveyor's Duplex, Merchant's, Chemist's Duplex, and an ad for the new, frameless cursor and magnifiers. Rose-colored soft-cover. Very good condition -- a little dirt and one nicked page. 217. (K+E) The Polyphase Slide Rule Manual --- The Polyphase Slide Rule, A Self-Teaching Manual. Breckenridge. Copyright 1925. 83+ pages. Rose-colored, soft cover. Pictures of the Roylance Electrical, Surveyor's Duplex, Merchant's, Chemist's Duplex, Mannheim, Polyphase, Polyphase Duplex, Log Log Duplex, and Stadia rules. (Others available.) 218. (K+E) The Polyphase Slide Rule Manual --- The Polyphase Slide Rule, No. N 4053, A Self-Teaching Manual. Breckenridge. Copyright 1938. 83+ pages. Rose-colored, soft cover. Very good condition. Pictures of the Power Computing, Kurtz Psychrometric, Ever-There 4097 C and D, Roylance Electrical, Surveyor's Duplex, Chemist's Duplex, and Stadia rules. (Others available.) 219. (K+E) The Polyphase Slide Rule Manual --- The Polyphase Slide Rule, A Self-Teaching Manual. Breckenridge. Copyright 1944. 83 pages. Grey and red, soft cover. 220. K+E Slide Rules, Deci-Lon, An Instruction Manual --- 5 inch by 8 inch blue, hard-cover book, 186 pages. Picture of the 68 1100 Deci-Lon rule. Copyright 1962. Like new condition. (Others available.) 221. K+E Slide Rules, A Self Instruction Manual --- A 5 inch X 8 inch, green, hard-cover book, 126 pages, for use with the following slide rules: Log Log Duplex Decitrig (4081) and Jet Log Duplex Decitrig (4181). Includes a drawing of a Log Log Duplex Decitrig rule. Good condition. Copyright, 1955. (Others available.) 222. K+E Slide Rule Manual, Log Log Duplex Decitrig --- 5 X 8 inch, green softcover. By Kells, Kern, and Bland. For No. 68 2047, Old No. 4187S. 125 pages. Copyright 1955. For models with SRT scale. 223. Lawrence Engineering 8-B --- 7 1/2 inch rule with box. Scales: A [B, CI, C] D, K. Light-colored wood, no paint. Instructions on the back. Marked Lawrence Engineering Service, Wabash, Indiana, Made in U.S.A. (Others available.) 224. Lawrence Engineering 10-B --- 9 1/2 inch rule. Scales: A [B, CI, C] D, K. White paint on light-colored wood. Equivalents and other measures on the back. Marked Lawrence Engineering Service, Peru, Indiana, Made in U.S.A. (Others available.) 225. Lawrence Engineering 250-BT --- 10 inch rule in blue slip case. Scales: A [B, CI,C] D, K, and, on the back of the slide, [S, L, T]. White paint on light-colored wood. Equivalents and other measures on the back. Marked Lawrence Engineering Service, Peru, Indiana. Both rule and case in good condition. Blue case with gold lettering, Lawrence Engineering Service. 226. Lawrence Slide Rule Instruction Book --- 28-page, 5 1/2 inch X 8 1/2 inch booklet. Copyright 1939 by Lawrence Engineering Service, Peru, Indiana. Generally very good condition - one length-wise slight fold. Also included is a 6-page pamphlet, A Mannheim Type Slide Rule, with slide rule pictures/diagrams and descriptions. (Others available.) 227. Lee's Amortizer --- Like new, 13 inch rule with box and instructions. Scales: Monthly Payment [seven Annual Interest Rate scales] Amount to be Paid, and, on the back of the slide, [seven more Annual Interest Rate scales]. Beautiful, light-colored hardwood. Large cursor. Rule is 2 1/2 inches wide. Copyright 1936 by Smith Lee, Los Angeles, California. Like new. The box, which shows considerable wear, has instructions inside. A beautiful, specialty slide rule. 228. Load Adjuster Boxes --- Original outside boxes for aircraft load adjuster slide rules, for several different aircraft. 229. Logarex 27103 --- 4 1/2 inch rule in leather, flip-top case. Scales: K, A [B, CI, C] D, L, and, on the back of the slide, [S, T]. White plastic. Marked: Rietz, Logarex 27103. Equivalents on the back. Excellent condition. Green leather flip-top case with snap closure, marked Dipl. Ing., Osmark, in very good condition, just a little dirt. 230. Logarex 27251 --- 5 1/2 inch rule in leather case. Scales: P, K, A [B, CI, C] S,T, and, on the back of the slide, [LL1, LL2, LL3]. 13 cm scale on the top beveled edge. 5 inch scale on the back. White plastic. Marked: Darmstadt, Logarex 27251. Equivalents on the back. Very good condition. Brown leather slip case, marked Logarex, in excellent condition. 231. Logarex 27302 --- A true 6 inch rule. Scales: P, K, A [B, L, CI, C] D, sin, tg, and, on the other side of the slide, [LL1, LL2, LL3]. 15 cm scale on the top beveled edge. 1:25 scale on the back. Also, constants on the back. White plastic. Very good condition. 232. Lutz 102 S --- Almost new, 10 inch rule in brown leather flip-top case. Scales: S, K, A [B, CI, C] D, L, T. White laminate on bamboo. Marked Lutz No. 102 S, U.S., Made in Japan. Almost new. Brown leather flip-top case, marked Lutz Slide Rule, needs just a bit of clean-up to be like new. (Another available.) 233. Lutz 252 --- Excellent, 10 inch rule with leather case. Scales: K, A [CF, CIF, CI,C] D, DI, and, on the other side, DF [B, T1, T2, ST, S] D, L. White laminate on bamboo. Marked, Lutz No. 252, Made in Japan. Also U.S. on one end of the slide. Brown leather, flip-top case. Both in excellent, almost new condition. (Another available.) 234. Lutz Manual --- Instructions for the Use of Your Lutz Slide Rule, Model No. 151, No.252. 35 pages. Very good condition, but discoloration on the cover and some other pages. 235. Lutz Case --- Brown pigskin, flip-top case, marked Lutz Slide Rule. Very good condition, just a few small scrapes. 236. Lyra-Orlow 31-004 --- 5 1/2 inch rule in leather case, with instructions. No cursor. Scales: K, A [B, CI, C] D, L, and, on the back of the slide, [S, ST, T]. 14 cm scale on the top beveled edge. Very good condition, but no cursor. Instructions in German. Made in Nurnberg. Beautiful tan leather slip case marked, Lyra Orlow, with a lyre emblem. A few loose stitches in the case. 237. Nestler Rietz-S --- 5 inch rule. Scales: K, A [B, CI, C] D, L, and, on the back of the slide, [S, ST, T]. 13 cm scale on the top beveled edge. White plastic with a blue plastic slide. Good condition, just a little dirt. 238. Nestler --- 10 inch rule in case. Scales: A, [B, C] D, and, on the back of the slide, [S, L, T]. 10 inch scale on the top beveled edge and a 25 cm scale on the bottom edge. Equivalents on the back. White laminate on mahogany. Held together with 10 small screws. Cursor is glass with metal guides. Very good condition -- just two initials lightly scratched in two places. Two piece black slip case/box. Very nice older rule. 239. Nestler --- 10 inch rule in leather case. Scales: A, [B, CI, C] D, K, and, on the back of the slide, [S, L, T]. 10 inch scale on the top beveled edge and a 25 cm scale on the bottom edge. Equivalents on the back in German. White laminate on mahogany. Held together with 10 small screws. Two cracks and one corner chip on the rule front. Some marks on the back. Otherwise the rule is in OK condition. The cursor is glass with metal guides -- it has come apart, but is complete and repairable. The case is brown leather with a flip top and a belt loop. It has an expansion at the top to accommodate the cursor. It has a name and small hole in the back and some rubs, but is actually quite nice. 240. Nestler Schul-Rietz --- New in box, 11 inch rule, Nestler, Schul-Rietz, in hard plastic slip case, with instructions. Scales: K, A [B, CI, C] D, L, and, on the back of the slide, [S, ST, T]. 30 cm scale on top beveled edge. White plastic with light-blue slide. Wide plastic cursor with several markings. Blue and white hard plastic slip case marked Nestler. Blue outer box. Everything new. (Others available.) 241. Nestler Elemath RS --- New in box, 10 inch Elemath RS rule, with case, instructions, and box. Scales: K, A [B, CI, C], D, L, and, on the other side, T1, T2, DF [CF, CIF, CI, C] D, S, ST. White plastic with blue slide. Blue and ivory-colored plastic slip case marked Nestler. Instructions in French. Blue outer box. Beautiful set. Everything is new. (Others available.) 242. Nestler Elemath Log Log --- New in box, 22 scales, 11 inch Elemath Log Log rule, with case, instructions, and box. Scales: L, K, A [B, BI, CI, C], D, LL1, LL2, LL3, and, on the other side, T1, T2, DF [CF, CIF, CI, C] D, P, S, ST. White plastic with blue slide. Rubber bumpers so that the rule can be used sitting on a desk. Blue and ivory-colored plastic slip case marked Nestler. Instructions in French. Blue outer box. Beautiful set. Everything is new. (Others available.) 243. Nestler 8 --- 10 inch rule in case. Scales: K, A [B, C] D, L. White paint on light-colored wood. Paint chipping. Equivalents in German on the back. Plastic cursor. Black slide case, marked: No. 8 Albert Nestler A. G. Lahr I,B., System Rietz, Jahoda & Bergmann, Wien III. 244. Nestler 11 --- 5 inch rule, in case. Scales: A [B, C] D. 13 cm scale on the top beveled edge. White plastic. On the back, R. Dolberg Aktiengesellschaft. Brown leather slip case. Good condition. 245. Nestler 21 --- 10 inch rule in box. Scales: K, A [B, CI, C] D, sin, cos; on the top beveled edge, 27 cm scale and lg; on the bottom edge, sin tg; and, on the back of the slide, LL1, LL2, LL3. No 21, Darmstadt, Albert Nestler A.G. LAHR I/B, D.R. Patent. White laminate on mahogany. Metal-framed cursor has an indicator for the lg scale on the top edge and an extension for the bottom-edge scales. Instructions and equivalents, in German, on the back. Very good condition. Two-piece black slide box, somewhat worn. 246. Nestler 21/53 --- 10 inch rule in box. Scales: L, K, A [B, CI, C] D, P, sin/cos, tg/ctg, and, on the back of the slide, LL1, LL2, LL3. 10 inch scale on the top. beveled edge. Equivalents on the back. Older white plastic -- very substantial. Very good condition, with some slight yellowing. Metal-framed glass cursor with tiny corner chip. Two-piece blue cardboard slide box. 247. Nestler 22 --- A true 6 inch rule, in box. Scales: K, A [B, CI, C] D, L, and, on the back of the slide, [S, S&T, T]. 16 cm scale on the top beveled edge and a 17 cm scale on the bottom edge. White laminate on mahogany. Cursor has a heavy metal frame, with a corner of the glass missing. Otherwise, the rule is in very good condition. The black, two-piece cardboard box is well-worn. 248. Nestler 23 --- 10 inch rule. Scales: K, A [B, CI, C] D, L, (unmarked) and, on the back of the slide, [S, S&T, T]. Also, 27 cm scale on the top beveled edge and 1:25 scale on the bottom edge. Cm extension scale in the well. Marked No. 23, System Rietz, Albert Nestler A.G., LAHR i/B, D.R.G.M., D.R. Patent. Equivalents on the back. White laminate on mahogany. Very good condition. No case. (Another available.) 249. Nestler 23R --- Excellent 10 inch rule in case. Scales: K, A [B, CI, C] D, L, and, on the back of the slide, [S, S&T, T]. Also, 27 cm scale on the top beveled edge and 1:25 scale on the bottom edge. Cm extension scale in the well. Marked: System Rietz, No. 23R, Albert Nestler A.G., LAHR i/B, D.R.G.M., D.R. Patent. Equivalents on the back. White laminate on mahogany. Black two-piece slide case. Excellent condition. (Another available.) 250. Nestler 37 --- 10 inch Electro rule in case. Scales: V, A [B, CI, C] D, U, and, on the back of the slide, S, S&T, T. LL2/LL3, K on the bottom edge. Cursor wraps to the bottom edge. 27 cm scale on the top beveled edge. White laminate on pearwood. Marked: Electro No.37, Albert Nestler A.-G. Lahri/B., D.R.P. Equivalents in German on the back. Very good condition. Two-piece, black slide box. 251. Nestler 0115 --- Excellent, 5 1/2 inch rule in leather case. Scales: A [B, C] D, and, on the back of the SLide, [S, L, T]. 13 cm scale on the top beveled edge. White plastic with blue slide. Marked: Nestler Nr. 0115. Brown leather slip case. Everything in excellent condition. 252. Nestler 0281 --- 10 inch Geometer rule in case. Scales: L, C [? , ST, C] D, A, and, on the bottom edge, K, BI, and, on the back of the slide, [S, ST,T]. Instructions in German on the back. White laminate on pearwood. 27 cm scale on top beveled edge. Metal framed cursor has an extension for the bottom edge. Rule in very good condition, just s small chip in the laminate on a back corner. Blue, hard plastic, clam-shell case marked Nestler -- very nice. 253. Noble --- 10 inch "Noble" Slide Rule Improved and Arranged by Clifford Pasley. Sheffield, England. Scales: M, A [B, C] E, D. 27 cm scale on the top beveled edge. 10 inch scale on the bottom beveled edge. Heavy metal framed cursor. Various measures on the back. White laminate on mahogany. Good condition. Black, two-piece slide case. 254. Pedigree 243 --- 5 inch rule on original display card with instructions. No case. Scales: A [B, CI, C] D, K, and, on the back of the slide, [S, L, T]. White plastic. This is a new rule, never opened. The display card is marked: Pedigree Precision Compact Slide Rule, No. 243, Empire Pencil Company, Shelbyville, Tennessee. The card has a little shelf dust, but is otherwise OK. 255. P. I. C. --- 5 inch rule in case. Scales: A [B, C] D. 5 inch scale on the top beveled edge. White plastic. Made in England. Brymill Tested Steels stamped on the back. Black leather slip case. Rule is somewhat worn, but nice. Case show little wear. 256. P.I.C. 3664 --- 10 inch rule in case. Scales: A [B, CI, C] D, and, on the back of the slide, [S, L, T]. 27 cm scale on the top beveled edge. Ten inch scale on the bottom beveled edge. White laminate on mahogany. Heavy metal-framed cursor. Marked PIC, No 3664, A.O. Thornton, Ltd. Made in England. Good condition. Black, two-piece slide case/box. 257. Pickett, Fisher Control Valve Sizing Rule --- Excellent,10 inch specialty rule, made by Pickett for the Fisher Governor Company, Marshalltown, Iowa, U.S.A., in case. Copyright 1954. Scales: Steam Valve Sizes (Single Ported and Double Ported), Pressure Drop PSI, [Specific Gravity, Viscosity, Flow-Liquid-GPM], C sub V Liquid Coef., Liquid Valve Sizes (Single Ported and Double Ported), and, on the other side, P sub I Inlet Pressure, P sub C Corrected Inlet Pressure [Pressure Drop, Specific Gravity, Gas Temperature, Superheat, Flow Gas and Steam] C sub G, Gas Valve Sizes (Single Ported and Double Ported). Yellow on aluminum. Like new. Tan leather Pickett snap case -- marked Fisher Governor Company, Carter-Jones Company, Los Angeles -- in very good condition. (Another available.) 258. Pickett (Model 1) Deci-Point --- 10 inch (Model 1, not so marked), Deci-Point, in rubber slip case. Scales: three cube root, L [T, T, ST, S, CI, C] D, two square root, and, on the other side, Region, Start C' [D', T', T', ST', S', DN] RN-DZ, square root, cube root. Copyright 1945. White on magnesium. The rule surface itself is in excellent condition -- no chipping, pitting, or bubbling. However, there is some standard magnesium corrosion on the edges, and the slide is frozen. Also, the heads of the screws or pins on the upper part of each metal end piece are broken off, although the pins themselves are still there. The cursor is also in excellent condition. The gray rubber slip case, marked Pickett & Eckel, Inc., is in very good condition. 259. Pickett Model 2 --- 10 inch Model No. 2, Deci. Log Log, in case. Scales: 1/N1, 1/N2, 1/N3, 1/N4 [Instructions, CF, CI, C] D, N1, N2, N3, N4, and, on the other side, three cube roots, L [T, T, ST, S, CI, C] D, two square roots. Copyright 1945. White on magnesium. Some edge paint chipping and a very few bubbles. One cursor "glass' is broken at two corners. Several screws are missing. (The cursor glass and screws will be replaced with originals.) Brown vinyl case has the usual hinge breaking. (Others available, including scale variations.) 260. Pickett Model X-3 --- New-in-box,10 inch, Executive Model X-3, Power Log Exponential, Log Log Dual Base rule, with executive presentation/storage box, manual, and blue felt slip case -- even the original cardboard outer cover. Scales: Two square root, K, A [B, ST, S, T, T, CI, C] D, DI, three cube root, and , on the other side, LLO, LL1, DF [CF, CIF, Ln, L, CI, C] D, LL2, LL3. Special, two-tone brown and white on aluminum. Special metal-framed cursor. Special metal end pieces. Black matte covered manual, How to Use Log Log Slide Rules. Blue felt slip case. Padded, black presentation box/case. Outer cardboard slip cover. All of the interior pieces are still covered in the original see-thru plastic wrap. Everything new. A very special, limited-edition rule and set. 261. Pickett Model 3 --- 10 inch Model 3 Deci-Log Log, Vector rule in case. Scales: 1/N1, 1/N2, 1/N3, 1/N4, DF [CF, T, ST, S, CI, C] D, N1, N2, N3, N4, and, on the other side, 3 cube roots, DF [CF, instructions, CI, C] D, DI, two square roots. White on magnesium. Copyright 1947. Cursor fine. Serial # C017978. Considerable tiny paint bubbling on the rule, particularly at the ends, as well as some slight paint chipping. Brown rubber flip-top case with snap loop on the back has some tears at the hinge points. (Another available.) 262. Pickett Model 3 --- 10 inch, Model 3, Deci Multiphase Log Log rule. Scales: 1/N1, 1/N2, 1/N3, 1/N4, DF/M [CF/M, instructions, CI, C] D, N1, N2, N3, N4, and, on the other side, 3 cube roots, DF [CF, T, ST, S, CI, C] D, DI, two square roots. White on magnesium. Copyright 1947. Serial # F609283. Very good condition, just a few, small edge chips in the paint. Cloth case. (Another available.) 263. Pickett Model N 3-ES --- New in case, 10 inch, Model N 3-ES, Power Log Exponential, Log Log Dual Base, leather case. Scales: Two square root, K, A [B, ST, S, T, T, CI, C] D, DI, three cube root, and , on the other side, LLO, LL1, DF [CF, CIF, Ln, L, CI, C] D, LL2, LL3. Yellow, aluminum. Copyright 1960. Brown leather flip-top case with belt loop has a few small marks, but is new, as is the rule. (Others, new and used, available.) 264. Pickett Model 3 Manual --- New, How to Use Model 3 Powerlog Slide Rules, by Maurice Hartung. Supplement to Manual M-14. 7 pages. Black cover. 265. Pickett N3/N3p-ES Twin Pack --- New in box, N3/N3p-ES Twin Pack, with maroon leather cases, 3 manuals, and display box. N 3 scales: Two square root, K, A [B, ST, S, T, T, CI, C] D, DI, three cube root, and, on the other side, LLO, LL1, DF [CF, CIF, Ln, L, CI, C] D, LL2, LL3. N3p scales: same. Yellow, aluminum. Maroon leather cases, large with flip top, small with pocket clip. Manuals: How to Use Log Log Slide Rules, 64 pages; How to Use Ln-L Scale Slide Rules, 16 pages; How to Use Model 3 Powerlog Slide Rules, 8 pages -- all matte black covers. A wonderful set. Everything new. (Another available.) 266. Pickett N3/N600-T Twin Pack --- New in box, N3/N600-T Twin Pack, with maroon leather cases, 3 manuals, papers, and display box. N 3 scales: Two square root, K, A [B, ST, S, T, T, CI, C] D, DI, three cube root, and, on the other side, LLO, LL1, DF [CF, CIF, Ln, L, CI, C] D, LL2, LL3. N600 scales: LL1, A [B, ST, T, S, C] D, DI, K, and, on the other side, LL2, DF [CF, Ln, L, CI, C] D, LL3. White, aluminum. Maroon leather cases, large with flip top and belt loop, small with pocket clip and pull-up tab. Manuals: How to Use Log Log Slide Rules, 64 pages; How to Use Ln-L Scale Slide Rules, 16 pages; How to Use Model 3 Powerlog Slide Rules, 8 pages -- all matte black covers. Guarantee/registration and nameplate offer. A wonderful set. Everything new. 267. Pickett Model 4 --- 10 inch Model 4, Vector Hyperbolic Log-Log. Scales: 1/N1, 1/N2, 1/N3, 1/N4, DF/m [CF/m, Th, Sh, Sh, CI, C] D, N1, N2, N3, N4, and, on the other side, three cube roots, DF [CF, T, ST, S, CI, C] D, DI, two square roots. Copyright 1947. White on magnesium alloy. In very good condition for this model. (Another available.) 268. Pickett Model 4 --- 10 inch Model 4, Deci-Log Log, Vector Hyperbolic, in case. Scales: 1/N1, 1/N2, 1/N3, 1/N4, DF [CF, Th, Sh, Sh, CI, C] D, N1, N2, N3, N4, and, on the other side, four cube roots, DF [CF, T, ST, S, CI, C] D, DI, two square roots. The rule is in very good condition for this magnesium model. Owner's name lightly inscribed on one of the metal end pieces. Cursor glasses slightly chipped on a couple of corners and will be replaced. The brown vinyl case is very good except for tears at the flip-top hinge point. (Another available.) 269. Pickett 4p-ES --- New in box, 5 inch, Pocket, Vectorlog rule with case, manuals, and display box. Scales: Three cube roots, DF [CF, CIF, T, T, ST, S, CI, C] D, DI, two square roots, and, on the other side, LL1, LL2, DF/m [CF/m, TH, SH, Ln, L, CI, C] D, LL3, LL4. Yellow, aluminum. Black leather case with pocket clip. Manuals: How to Use Dual Base Log Log Slide Rules, 93 pages; How to Use Ln-L Scale Slide Rules, 16 pages -- both with matte black covers. Display box. 270. Pickett N4-ES --- 10 inch Model N4-ES, Vector-Type Log Log, Dual-Base Speed Rule, in leather case. Scales: 2 cube root, DF [CF, CIF, T, ST, S, CI, C] D, DI, square root, and, on the other side, LL1, LL2, DF/M [CF/M, TH, SH, Ln, L, CI, C] D, LL3, LL4. Yellow on aluminum. Copyright 1959. Very good condition -- just a slight bit of dirt on the end pieces. The tan leather Pickett case has some marks on it as well as an owner's name scratched in. (Another available.) 271. Pickett N4/N600-ES Twin Pack --- New in box, N4/N600-ES, with leather cases, 3 manuals, guarantee/registration, display box. N4 scales: 2 cube root, DF [CF, CIF, T, ST, S, CI, C] D, DI, square root, and, on the other side, LL1, LL2, DF/M [CF/M, TH, SH, Ln, L, CI, C] D, LL3, LL4.. N600 scales: LL1, A [B, ST, T, S, C] D, DI, K, and, on the other side, LL2, DF [CF, Ln, L, CI, C] D, LL3. Yellow, aluminum. Maroon leather cases, the smaller with a pull-up tab and pocket clip, the larger with a belt loop and hanger. Manuals: How to Use Log Log Slide Rules, 64 pages; How to Use Dual Base Log Log Slide Rules, 93 pages; How to Use Ln-L Scale Slide Rules, 16 pages -- all with matte black covers. Display box. Guarantee/registration sheet. Everything brand new. 272. Pickett N4-T --- 10 inch Model N4-T, Vector-Type Log Log, Dual-Base Speed Rule, in case. Scales: 2 cube root, DF [CF, CIF, T, T, ST, S, CI, C] D, DI, square root, and, on the other side, LL1, LL2, DF/M [CF/M, TH, SH, Ln, L, CI, C] D, LL3, LL4. White on aluminum. Copyright 1959. One screw missing. (Will be replaced.) Otherwise, excellent condition. Tan, leather, flip-top case very solid with just a few marks. (Another available.) 273. Pickett Model 14 --- Like new, 10 inch rule, U.S. Military Slide Rule, in leather case, with manual. Scales: LL1, LL2, A [B, T, ST, S, K, C] D, LL3, LL4, and, on the other side, Opposite Angle - Deg., Mils [Apex Angle, Tan, Sin-Tan, Base] Distance, A. Yellow on aluminum. Tan leather flip-top, snap case, marked Pickett and US, has a belt loop. Includes a separate plastic rule with triangle data and equations that fits in a special slot in the case. 93-page manual, How to Use Dual Base Log Log Slide Rules. The manual has some slight cover wear. Everything else is like new. 274. Pickett N16-ES/N 600-ES Twin Pack --- New in display box, yellow, aluminum rules, mahogany leather cases, three manuals, plot sheet, guarantee. Manuals: How to Use Dual Base Log Log Slide Rules, How to Use Ln-L Scale Slide Rules, How to Use the N-16ES Electronic Slide Rule; a Nyquist Plot Sheet, and a guarantee. The display box is black, gold, and white. The scales on the N-16-ES are: SH1, SH2, TH, DF [CF, L, S, ST, T, CI, C] D, LL3, LL2, LL1, Ln, and, on the other side, theta, db, D or Q, XL, Zs or Xc [C or L, F, lambda, two I can't reproduce here, Cr] Lr, db, cos theta. The scales on the 600-ES are: LL1, A [B, ST, T, S, C] D, DI, K, and, on the other side, LL2, DF [CF, Ln, L, CI, C] D, LL3. Mahogany leather flip-top case for the N16. Mahogany leather pocket-clip case with a pull-up tab for the N600. A beautiful set. (Others available.) 275. Pickett 115 --- 10 inch Basic Math Rule, in case. Scales: D*, X [Y. CI, C] D, A, L. White plastic. Good condition, just a little dirt. Gray slip case. 276. Pickett 120 --- New in box, 10 inch rule in black slip case. Scales: K, A [B, T, S, CI, C] D, L. White plastic with white plastic end pieces. (Others, used, available.) 277. Pickett 120C-ES Microline --- New in package, Microline 120 with black slip-case and instructions. On original orange hanging card. Scales: K, A [B, S, T, CI, C] D, L. (Others available.) 278. Pickett 120 Microline --- New in box, Pickett 120 Microline. Scales: K, A [B, S, T, CI, C] D, L. White plastic. (Others available, both new and used, both white and yellow.) 279. Pickett 121 --- 10 inch rule, with case. Scales: K, A [B, T, S, CI, C] D, L. Equivalent tables on the back. White plastic with white end pieces. Good condition, just a little dirt. Gray slip case -- fair condition. (Another, similar, available.) 280. Pickett 125 Microline --- 10 inch Microline 125 in case. Scales: K, A[ B, CI, C] D, L, and, on the back, fraction-to-decimal conversion [S, ST, T, C] D. White plastic. Excellent condition except for a number scratched into a corner on the back. Black slip case. (Another available.) 281. Pickett 140 --- Like new, Pickett Log Log No. 140, in case. Scales: LL0, LL00, A [B, ST, T, S, C] D, K, and, on the other side, L, LL1, DF [CF, CIF, CI, C] D, LL3, LL2. Plastic. Like new. Gray slip case. (Another available.) 282. Pickett 140C-ES Microline --- New in package, 10 inch Microline 140 with black leatherette slip case, with instructions. On original orange hanging display card. Scales: LL01, K, A [B, S, ST, T, C] D, DI, LL1, and, on the other side, LL2, LL3, DF [CF, CIF, L, CI, C] D, LL2, LL3. Yellow plastic. Everything new. (Others available.) 283. Pickett 140C-T Microline --- New, 10 inch Microline 140. Scales: LL01, K, A [B, S, ST, T, C] D, DI, LL1, and, on the other side, LL2, LL3, DF [CF, CIF, L, CI, C] D, LL2, LL3. White plastic. New. 284. Pickett 140 Microline --- New 10 inch Microline 140 in black leatherette slip case, with instructions. Scales: LL01, K, A [B, S, ST, T, C] D, DI, LL1, and, on the other side, LL2, LL3, DF [CF, CIF, L, CI, C] D, LL2, LL3. White plastic. Rule, case and instructions, new. (Others available, both new and use, both white and yellow.) 285. Pickett 160 Microline --- 5 inch rule in black slip case. Scales: K, A [B, CI, C] D, L. White plastic. A little dirt, otherwise, very good condition. The black slip case has the owner's name in silver. (Another, yellow, available.) 286. Pickett 160-ES Microline --- New in box, 5 inch rule, with instructions and case. Scales: K, A [B, CI, C] D, L. Yellow plastic with black slip case. Instruction sheet. Orange, black, and white outer box. Everything is new. (Another available.) 287. Pickett 160-T Microline --- New in box, 5 inch rule, with instructions and case. Scales: K, A [B, CI, C] D, L. White plastic with black slip case. Instruction sheet. Orange, black, and white outer box. Everything is new. (Others available.) 288. Pickett 200 --- 5 inch rule with leather slip case. Scales: K, A [B, CI, C] D, L, and, on the back, [S, ST, T]. White on aluminum. Very good condition -- just owner's name lightly scratched on the back. Tan leather slip case with pocket clip, Pickett embossed on the back, and Yale printed in gold on the front. Owner's name written on back of case. Case is solid, but slightly scratched. (Another, similar, available.) 289. Pickett N200-ES --- New in box, 5 inch Trig Slide Rule with leather case, manual, and box. Scales: K, A [B, CI, C] D, L, and, on the back, [S, ST, T, C] D. Yellow, metal. Still in original plastic wrap. Mahogany, leather case with pull-up tab and pocket clip. 63-page manual, How to Use Trig Slide Rules. Original black, blue, and white box. Everything new. Everything original. (Others, new and used, available.) 290. Pickett N200-T --- New in box, 5 inch Trig Slide Rule with leather case, manual, and box. Scales: K, A [B, CI, C] D, L, and, on the back, [S, ST, T, C] D. White, metal. Still in original plastic wrap. Mahogany, leather case with pull-up tab and pocket clip. 63-page manual, How to Use Trig Slide Rules. Original black, blue, and white box. Everything new. Everything original. (Others available.) 291. Pickett 400 Manual --- How to Use Pickett 400 Business Slide Rules. 22-page, soft, matte black cover manual. Very good condition. (Another, similar, available.) 292. Pickett 500 --- 10 inch rule in leather case. Scales: LL0, LL00, A [B, T, ST, S] D, K, and, on the other side, L, LL1, DF [CF, CIF, CI, C] D, LL3, LL2. White on magnesium. Some surface bubbling, typical of this 1948-series model. Cursor serial # 6890H60. Brown leather flip-top case with snap belt loop, in very nice shape. (Others available.) 293. Pickett N500 / 300ES Set --- New, Pickett Dual Base, Log Log, N-500-ES, N-300-ES, paired set, in tan suede cases. Both rules are yellow on aluminum. Both still in original plastic. Both cases, tan suede. The 500 case is a flip-top, the 300 case is a slip-case. Both with Pickett in gold lettering. Everything is new -- the cases show just a little matting. (Others available, some with smooth black leather cases instead of tan suede.) 294. Pickett N-500-ES --- New in box, 10 inch rule, Hi Log Log, in black leather, flip-top case, with box, guarantee, and instruction manual. Scales: +LL1, -LL1, A [B, T, ST, S, C] D, DI, K, and, on the other side, +LL2, -LL2, DF [CF, CIF, L, CI, C] D, +LL3, -LL3. Yellow metal. 95-page manual, How to Use Log Log Slide Rules. Guarantee/registration card. Green, black, and white box. Everything new. Everything original. (Others, both new and used, available.) 295. Pickett N-500-T --- New in box, 10 inch rule, Hi Log Log, in black leather or soft tan leather, flip-top case, with box, guarantee, and instruction manual. Scales: +LL1, -LL1, A [B, T, ST, S, C] D, DI, K, and, on the other side, +LL2, -LL2, DF [CF, CIF, L, CI, C] D, +LL3, -LL3. White on aluminum. 95-page manual, How to Use Log Log Slide Rules. Guarantee/registration card. Green, black, and white box. Everything new. Everything original. (Others available.) 296. Pickett N515-T Electronic --- Like new, 10 inch rule, marked Cleveland Institute of Electronics, with maroon, leather flip-top case. Scales: H, 2pi, A [B, S, T, CI, C] D, L, Ln. Rule is white on aluminum. Like new. Electronic formulas and data on the back. The case, marked Pickett, Cleveland Institute of Electronics, is in very good shape. (Others available.) 297. Pickett 520 --- 10 inch, U.S. Air Force Aerial Photo Slide Rule, Type A-1, in leather case with equivalents window. Scales: L, A, DF [CF, CIF, T, S, C] D, DI, K, and, on the other side, Ground Size [Image Size, Focal Length] Altitude. White on magnesium. Some paint crazing, otherwise in good condition. Brown leather flip-top case with a long, clear window with equivalents in it -- very good condition. 298. Pickett 520-T --- 10 inch, U.S. Air Force Aerial Photo Slide Rule, Type A-1, in leather case with equivalents window. Scales: L, A, DF [CF, CIF, T, S, C] D, DI, K, and, on the other side, Ground Size [Image Size, Focal Length] Altitude. White on aluminum. Brown leather flip-top case with a long, clear window with equivalents in it. Very good condition. (Another available.) 299. Pickett N 531-ES --- Excellent, 10 inch rule marked CREI, The Capitol Radio Engineering Institute, in black leatherette slip case. Scales: L, Ln, A [B, CI, C] D, 2pi, K, and, on the other side, LL2, LL1 [S, ST, T, C] D, LL3. Yellow metal. Rule like-new; case in very good condition. (Another available.) 300. Pickett N540-T --- New in box, Pratt & Whitney Aircraft CS 126-1,10 inch rule, with case and guarantee. Scales: Inlet Air Temperature [Inlet Air Pressure, C] D, and, on the other side, Correction [Inlet Air Temperature, Indicated Degrees C, F] Corrected Degrees F, C. White on aluminum. Marked Pratt & Whitney. Black leather, Pickett, flip-top case. Green, black, and white outer box. Guarantee. Everything new. (Others, both new and used, available.) 301. Pickett N 550-T --- Unusual, nice, 10 inch, Model N-550-T, Warren-Knight Weight Rule - No. 11371-ET, with case. Scales: L, A, DF [CF, CIF, T, S, C] D, DI, K, and, on the back, Thickness [Width, Length, Material, Shape] Weight. The Material scale is labeled: Lead, Copper, Brass, Steel, Cast Iron, Aluminum, Magnesium. Copyright 1962 by Warren-Knight Co., Philadelphia, PA. White on aluminum. Very good condition. Brown leather case has some cracking on the flip top. 302. Pickett N 600-ES --- New, in display box, 5 inch, with case and manual. Scales: LL1, A [B, ST, T, S, C] D, DI, K, and, on the other side, LL2, DF [CF, Ln, L, CI, C] D, LL3. Yellow aluminum. Maroon leather pull-up-tab case. Manual, How to Use Log Log Slide Rules -- copyright 1953, 95 pages. Everything factory-new. (Others, both new and used, available.) 303. Pickett N 600-T --- New in case, 5 inch rule, in case. Scales: LL1, A [B, ST, T, S, C] D, DI, K, and, on the other side, LL2, DF [CF, Ln, L, CI, C] D, LL3. White, aluminum. Maroon leather pull-up-tab case. Case has a few, slight spots on it, but is new, as is the rule. 304. Pickett N606-ES --- New in box, 5 inch rule, Simplex Trig with Metric Conversion, with case, instructions, guarantee, supplemental instruction sheet, and box. Scales: K, A [B, T, S, CI, C] D, L, and, on the other side, Degrees F/ Frac., A [Conversion Scales] B, Degrees C/ Dec. Still in original plastic. Black slip case. 64-page manual, How to Use Trig Slide Rules, matte black cover. Separate sheet: How to Use Conversion Scales. Guarantee. Blue, black and white outer box. Everything new. (Others available.) 305. Pickett N800-ES --- Essentially new, 10 inch Log Log rule in leather case. Scales: LL1, A [B, ST, T, S, C] D, DI, K, and, on the other side, LL2, DF [CF, CIF, L, CI, C] D, LL3. Yellow on aluminum. Very good condition Marked Speed Rule and Synchro-Scale. Black leather flip-top case marked Pickett, in good condition. the rule itself is essentially new. (Another available.) 306. Pickett 800-T --- 10 inch Log Log Speed Rule, Synchro-Scale in leather flip-top case. Scales: LL1, A [B, ST, T, S, C] D, DI, K, and, on the other side, LL2, DF [CF, CIF, L, CI, C] D, LL3. White on aluminum. Very good condition, just slightly yellowed. Excellent tan leather flip-top case marked Pickett, with belt-loop ring. (Another available.) 307. Pickett 800-T Box --- Green, black, and white outer box, like-new. 308. Pickett N803/N600-ES Twin Pack --- New in box, N803/N600ES Dual-Rule Matched Set, with black leather cases, manual, and guarantee/registration. N803 scales: 2 square root, K, A [B, S, ST, T, CI, C] D, DI, DFm, and, on the other side, LL0, LL1, DF [CF, CIF, L, CI, C] D, LL2, LL3. N6OO scales: LL1, A [B, ST, T, S, C] D, DI, K, and, on the other side, LL2, DF [CF, Ln, L, CI, C] D, LL3. Both yellow, aluminum. Beautiful matte black leather cases. Manual, How to Use Log Log Slide Rules, 95 pages, copyright 1953. Everything new. 309. Pickett N901-T --- Essentially new, 10 inch Simplex Math rule in case. Scales: A [B, CI, C] D, L. On the back, X [Y, C*] D*. Copyright 1965. White on aluminum. Gray slip case. Everything essentially new. (Another available.) 310. Pickett 902K-ES Slide Rule Kit --- New in box, a wonderful, complete slide rule kit. Consists of a N902-ES rule (yellow, aluminum); a black slide case; a 64-page book, Programmed Self-Instruction, How to Use a Slide Rule, by Eugene Roberts (copyright 1962, 1969); a registration and guarantee slip; all beautifully packed in a large, 13 inch X 9 inch, clear-fronted, green, black, and white box. A really nice, new set for use or display. (Others available.) 311. Pickett 902 --- 10 inch rule. Scales: K, A [B, S, T, C] D, L. On the back, definitions and instructions. White on magnesium. Cursor is unusual in that the guides ride in slots on the rule, and there is no back side to the cursor. The rule has some slight dirt and fading and a few tiny paint bubbles, but is generally fine. 312. Pickett N902-ES --- New in box, 10 inch rule, Simplex Trig, in black leatherette slip case. Scales: K, A [B, T, S, CI, C] D, L. Yellow on aluminum. With 64-page, 1960 manual, plus guarantee card. Original external box is worn; everything else is new. (Others, used, available.) 313. Pickett N902-T--- New, 10 inch rule, Simplex Trig. Scales: K, A [B, T, S, CI, C] D, L. White on aluminum. Instructions on the back. Brand new, still wrapped in original plastic. No case. (Others, both new and used, both with and without cases, boxes, and manuals, available. ) 314. Pickett 902-RT --- New in box, 10 inch, Pickett Simplex Trig with Ring Binder Case, instruction manual, and guarantee/registration. Scales: K, A [B, T, S, CI, C] D, L. Instructions on the back. White on aluminum. Still sealed in original plastic. The case is very interesting -- red-brown, with holes for a ring-binder and pockets for two pens/pencils. Manual, How to Use Trig Slide Rules, by Maurice Hartung, 64 pages, Copyright 1960. Guarantee/registration sheet. Beautiful black, yellow, brown, and white slide box. This is a very nice set, new, as it came from the factory. (Others available.) 315. Pickett 903-ES --- New in box, 10 inch Trig Conversion rule with case, manual, guarantee, and display box. Scales: K, A, DF [CF, T, S, CI, C] D, L. Conversions and instructions on the back. Yellow, aluminum. Black slip case. 64 page manual, How to Use Trig Slide Rules, Copyright, 1960. Guarantee and registration card. Green, black, and white display box. Everything is new. (Others available.) 316. Pickett 905-ES "A" --- Excellent, 10 inch Texas Speed Rule in case. Scales: K, A [B, K, CI, C] C, L, and, on the back, [T, ST, S, C] D. Marked Texas Speed Rule. Yellow on aluminum. Excellent condition. Case in good condition. (Others available.) 317. Pickett N909-ES -- New in box, 10 inch rule, Metric Conversion Simplex Trig, with case and instructions. Scales: K, A [B, T, S, CI, C] D, L, and, on the other side, various English and metric conversions -- Degrees F/ Degrees C, Tons Short/Metric, , Miles/Kilometers, Sq. and Cu. Meters and Feet, Meters/Yards, Meters/Feet, Kilograms/Pounds, Liters/Quarts, Ounces/Grams, Cu. Inches/ Cu Cms., Inches/Centimeters, Sq. Meters/Sq. Yards. Sq. Inches/ Sq. Cms., Sq. Miles/ Sq. kilometers, Cu. Meters/Cu. Yards . Yellow on aluminum. Black slip case. Instruction manual. Blue, black, and white box. Box is a little squished. Everything is new. (Another available.) 318. Pickett 1000 --- Excellent, 10 inch rule, Ortho-Phase Duplex, in cloth case, in box, with instructions. Scales: A [B, T, ST, S] D, K, and, on the other side, DF [CF, CIF, CI, C] D, L. White on magnesium. Copyright 1948. Like-new. 32-page manual. Nice gray cloth case. Gray slide box. (Others available.) 319. Pickett N 1010-ES / ICS: Like-new, 10 inch Trig rule in black leather, flip-top case. Scales: K, A [ B, ST, T, S, C] D, DI, and, on the other side, DF [CF, CIF, CI, C] D, DI, L. Yellow metal. Like-new. Copyright 1959. Like-new, black leather case -- ICS, Since 1890, printed on it in gold, along with Pickett. Obviously a set made especially for the International Correspondence Schools. Everything like new. 320. Pickett N1010-ES --- 10 inch Trig rule in tan leather, flip-top case, with case and papers. Scales: K, A [ B, ST, T, S, C] D, DI, and, on the other side, DF [CF, CIF, CI, C] D, DI, L. Yellow, aluminum. Like-new. Copyright 1959. Leather case with belt loop. Also included are small papers. Case is poor. Box shows shelf wear. (Others available.) 321. Pickett N1010-T --- Excellent, older model, aluminum 10 inch Trig rule in case. Scales: K, A [ B, ST, T, S, C] D, DI, and, on the other side, DF [CF, CIF, CI, C] D, L. White on aluminum. Grooves for cursor guides. Marked Pickett & Eckel 271. Brown slip case. Everything excellent. (Another available.) 322. Pickett N1010-T --- New in box, 10 inch Trig rule no case, with instructions and papers. Scales: K, A [ B, ST, T, S, C] D, DI, and, on the other side, DF [CF, CIF, CI, C] D, DI, L. White on aluminum. Copyright 1959. Still in original plastic. 64-page instruction book, How to Use Trig Slide Rules by Maurice Hartung. Copyright 1960. Guarantee/registration sheet. Green, black, and white slip box. Everything new. (Others, used, available.) 323. Pickett 1011-ES ---10 inch Trig-Exponential Speed Rule in brown, leather flip-top case. Scales: K, A [B, ST, T, S, C] D, DI, and, on the other side, Ln, DF [CF, CIF, CI, C] D, DI, L. Yellow, aluminum. Copyright 1959. Rule in very good condition. Case has a few marks. 324. Pickett Dual Base Log Log Manual --- 93-page manual, How to Use Dual Base Log Log Slide Rules, by Maurice Hartung. Yellow soft cover. Pictures of the following rules included: Model 2-T Dual Base Log Log Syncroscale, Model 4-T Dual-Base Log Log Vector Hyperbolic Syncroscale, Model 3-T Dual-Base Log Log, Model 600 Log Log. Includes adjustment and cleaning instructions. Very good condition. 325. Pickett How to Use Basic Slide Rules --- How to Use Basic Slide Rules, Simplified Instructions. 16-page manual. White paper cover with black printing. Excellent condition, just folded from being in a case. 326. (Pickett) How to Use Basic Slide Rules --- How to Use Basic Slide Rules. 16-page manual. Matte black cover, center fold. (Others available.) 327. (Pickett) How to Use Dual Base Slide Rule Exponential Ln-L Scales --- 14-page manual. Yellow and black. By Maurice Hartung. Copyright 1959 by Pickett &Eckel. Very good condition. 328. (Pickett) How to Use Dual Base Slide Rule Exponential Ln-L Scales --- 16-page manual. Yellow and black. By Maurice Hartung. Excellent condition. 329. Pickett Ln-L Scale Manual --- How to Use Ln-L Scale Slide Rules. 16-page manual, matte black cover. Pictures of Model 1011 and Model 4. Brand new. (Another available.) 330. (Pickett) How to Use Log Log Slide Rules --- How to Use Log Log Slide Rules. By Maurice Hartung. 95 pages. Black cover. Copyright 1953 by Pickett. Good condition -- a central fold and some cover wear. 331. (Pickett) How to Use Log Log Slide Rules --- How to Use Log Log Slide Rules. By Maurice Hartung. 64 pages. Yellow and black soft cover. Copyright 1953 by Pickett & Eckel. Pictures of Model 600 Log Log, Model 300 Log Log, and Model N4-ES Vector Log Log Dual Base rules. Very good condition, just a central fold. 332. (Pickett) How to Use Log Log Slide Rules --- New, How to Use Log Log Slide Rules. By Maurice Hartung. 64 pages. Black matte cover. Copyright 1953 by Pickett. Pictures of Model 600 Log Log, Model 300 Log Log, and Model N4-ES Vector Log Log Dual Base rules. New condition. 333. (Pickett) How to Use Model 3 Powerlog Slide Rules --- Matte black cover. 8 pages. Supplement to Manual M-14. 334. (Pickett) How to Use Trig Slide Rules --- How to Use Trig Slide Rules. By Maurice Hartung. 64 pages. Copyright 1960. Very good condition. (Another available.) 335. (Pickett) How to Use Trig Slide Rules --- How to Use Trig Slide Rules. By Maurice Hartung. 40 pages. Copyright 1953. Features and pictures the Model 1010 Trig and Model 903 Conversion Trig. Good condition, just a few folds and wrinkles. (Another available.) 336. Pickett Log Log Manual --- How to Use Log Log Slide Rules. 64-page manual, matte black cover. Pictures of Models N3ES, N803ES, and N800ES. Also Model 600 Log Log, Model 300 Log Log, and Model N4ES. Brand new. 337. Post 20 Inch Rule --- Very old Post 20 inch rule. Made in Germany, probably by Nestler. Unusual folded scales. White laminate on mahogany. 50 cm scale on the top beveled edge -- last 3 cm of laminate are missing. 20 inch scale on bottom edge. Six adjustment screws on bottom edge. Equivalents on back not legible. Several long scratches on the rule face. Cursor is broken and part is missing. Unusual rule, but not in top condition. 338. Post 1441 --- 4 inch rule, 4 3/4 inch overall length. Only 7/8 inch wide. With magnifying cursor. Scales: A [B, CI, C] D, and, on the back of the slide, [S, L, T]. 4 inch scale on top beveled edge. White laminate on bamboo. Marked: Frederick Post Co., 1441, Hemmi, Japan. Magnifying cursor marked: Sun Hemmi, Japan. The rule is in excellent condition. 339. Post 1444K --- 5 inch rule in brown leather slip case. Scales: A [B, CI, C] D, K, and, on the back of the slide, [S, L, T]. White laminate on bamboo. Marked on the back: Sun Hemmi, Japan, D J. Also marked on the back: Stephens-Adamson Mfg. Co. Cursor marked: Sun Hemmi Japan. Rule in very good condition, just a little dirt. Brown leather case, marked Post 1444K in gold, is worn and stained, but solid. (Another available.) 340. Post 1444 P--- 5 inch rule in tan, leather slip case. Scales: A [B, CI, C] D, K and, on the back of the slide, [S, L, T]. Also, a 5 inch scale on the bottom beveled edge and a 12 cm scale on the top beveled edge. White plastic. Excellent shape. Case is tan leather with Post 1444P embossed, a few light marks. 341. Post 1445 --- 8 inch rule. Scales: K, DF [CF, CI, C] D, A, and, on the back of the slide, TI, L, SI. White laminate on bamboo. Labeled Frederick Post Company, Chicago, Hemmi, Japan. Excellent condition. Clear plastic notebook case. (Others available.) 342. Post 1446 --- 10 inch rule with black, slip box. Scales: A [B, C] D, and, on the back of the slide, [S, L, T]. White laminate on bamboo. Rule and cursor both marked Hemmi Japan. Small indentation on the bottom of the rule and some light scratches. Otherwise the rule in in very good shape. The box is solid with just a few surface rubs and tears. (Others available.) 343. Post 1447 --- 10 inch rule with black, slip box. Scales: A [B, CI, C] D, K, and, on the back of the slide, [S, L, T]. Marked Sun Hemmi Japan D1(I?). White laminate on bamboo. Rule in excellent condition. Box, marked Post 1447, has rips and tears, but the rule is excellent. (Others available.) 344. Post 1450 --- Essentially new, 10 inch Versatrig 1450 with case. Scales: K, DF [CF, CIF, CI, C] D, R1, R2, and, on the other side, L, A [T, ST, S, C] D, DI. White laminate on bamboo. Rule and cursor marked Hemmi Japan. Essentially new, as is the black leather flip-top case with snap belt loop. (Another available.) 345. Post 1452 --- Old style, 10 inch rule, made in Germany, in unusual case. Scales: A [B, CI, C] D, K, and, on the back of the slide, [S, L, T]. White laminate on mahogany. Heavy metal-framed cursor marked, Germany. 10 inch scale on the top beveled edge. 26 cm scale on the bottom edge. Marked, in the slide well, Frederick Post Co., Made in Germany. Table of constants on the back. Very good condition. Probably made by Nestler or Faber. Two-piece slip case is black-covered with rounded ends -- solid, but with some cover peeling. 346. Post 1452P --- Excellent, 10 inch rule. Scales: A [B, CI, C] D, K, and, on the back of the slide, [S, L, T]. 10 inch scale on the top beveled edge and a 25 cm scale on the bottom edge. Equivalents on the back. White plastic. Excellent condition. (Another, with case, available.) 347. Post 1452T --- 10 inch rule, no case. Scales: A [B, CI, C] D, K, and, on the back of the slide, [S, L, T]. 10 inch scale on the top, beveled edge and a 27 cm scale on the bottom edge. Marked, Sun Hemmi Japan. White laminate on bamboo. Good condition except for 1 cm missing from the laminate on the cm scale, and a little dirt. Cursor is a K+E, patent# 2,086,502, thin metal frame. 348. Post 1452W --- 10 inch Universal rule, partial case. Scales: A [B, CI, C] D, K, and, on the back of the slide, [S, L, T]. 10 inch scale on the top, beveled edge and a 27 cm scale on the bottom edge. Marked: Universal, Frederick Post Co. 1452W, Sun, Hemmi Japan. White laminate on bamboo. Various tables on the back. In very good condition. Case appears to be pigskin, but is missing the flip-top. (Others available.) 349. Post 1457 --- 10 inch Mannheim-Trig rule, no case. Scales: T, DF [CF, CIF, CI, C] D, S, ST, and, on the back of the slide, [B, K, L, C]. Also on the back, various equivalents and trig functions. White laminate on mahogany. Some yellowing and fading. Two of the four plastic end pieces are broken. The cursor is loose, scratched, and cracked on one side. (A filler for a hole in your collection.) 350. Post 1460 --- New, 10 inch Versalog II, 1460 rule. Scales: L, LL/1, LL/2, LL/3 [T, SRT, S, C] D, LL3, LL2, LL1, and, on the other side, LL/0, K, A, DF [CF, CIF, CI, C] D, R1, R2, LL0. White laminate on bamboo. Rule marked: Post, Versalog 1460, Hemmi, Japan. Cursor, marked: Post, Hemmi Japan. No serial #. Rule is new. (Others, used, available.) 351. Post 1460 --- New, 10 inch Versalog 1460 rule with mahogany, leather, flip-top case. Scales: LL/1, LL/2, LL/3 [T, ST, S, C] D, LL3, LL2, LL1, and, on the back, LL0, LL/0, K, DF [CF, CIF, CI, C] D, R1, R2, L. White laminate on bamboo. Rule marked: Hemmi Bamboo - Japan. Cursor marked: Post, Hemmi Japan. Serial # 206815. Both rule and case, with belt loop, are new. (Others, almost new and used, available.) 352. Post 1461 --- Virtually new in box, with manual, 5 inch Versalog 1461 rule, complete with box, leather case, guarantee, and manual. Scales: LL0, LL/0, K, DF [CF, CIF, CI, C] D, R1, R2, L, and, on the other side, LL/1, LL/2, LL/3 [T, ST, S, C] D, LL3, LL2, LL1. Rule appears to be new. White laminate on bamboo. Open bamboo edges. Brown leather Post Versalog case with pocket clip, probably new. New guarantee sheet. Slip box, marked 1461L may be new, but shows some shelf wear. A small, 19+ page manual, It's easy to Use Your Post Slide Rule, is also probably new. Probably the whole set is new, but was taken out a few times. A copy of the Versalog hard cover manual is also available if wanted. This is a very nice set. (Others available.) Post 1461 --- For a beautiful, new-in-box, very similar rule (both are made by Sun Hemmi), see Sun Hemmi 149A. 353. Post 1462H --- Unusual 10 inch, Postrig, Sun Hemmi, Made in Occupied Japan rule in leather case. The is not the later 1462 with painted markings. This is a good Sun Hemmi with engraved markings. Scales: T, DF [CF, CIF, CI, C] D, S, ST, and, on the other side, LL0, LL00, A [B, K, L, C] LL3, LL2, LL1. White laminate on bamboo. Marked: Postrig, The Frederick Post Co., 1462H, Sun Hemmi, Made in Occupied Japan. There is a half-dime size piece of laminate missing on the top, right front, mostly obscuring the 1462H designation. The cursor is marked Sun Hemmi, Made in Occupied Japan. The cursor glass is cracked on both sides and one of the eight screws is missing. There is some dirt, but otherwise, the rule is ok. The brown, flip-top, leather case, marked Post 1462H, Made in Occupied Japan, is worn and missing the flip-top hold-down strap, but is generally solid. An unusual set. 354. Post 1462 --- Excellent, 10 inch rule in blue, vinyl(?), flip-top case, care instructions, and original box. Scales: LL0, LL00, A [B, K, L, C] LL3, LL2, LL1, and, on the back, T, DF [CF, CIF, CI, C] D, S, ST. White laminate on mahogany. Excellent condition -- unusual for this model. Case, marked Post, is also excellent. Sheet, Treatment and Adjustment of Post-Dual and Mannheim Trig Slide Rules, very good. Original red box shows some shelf wear, but is very good. (Others available.) 355. How to Use your Post Slide Rule --- How to Use your Post Slide Rule, Easy to Understand Instructions. 19-page brochure. Includes a fold out illustration and ad for a Versalog 1460. Very good condition, just very slight cover soiling. (Another available.) 356. It's Easy to Use Your Post Slide Rule --- 23-page booklet, 3 1/2 inches by 6 inches. It includes a two-page fold-out ad for the Versalog. 357. The Post Lifetime Guarantee --- a small, four-page folder with the Post slide rule guarantee, construction details, care guide, and list of rule models. New. (Others available.) 358. Post Versalog Slide Rule Instructions --- Several copies of different editions: 1951 edition, 115 pages; 1962, 119 pages; 1963, 119 pages. 359. Post Versalog II Slide Rule Instructions --- 194-page manual. Soft cover. Teledyne Post. 1970. Good condition. 360. Rally Rule, Mobil --- a 4 inch circular rule on a 4 1/2 inch X 6 inch card. Marked: Treibstoff-Verbrauchs-Rechner. Two sided. Cardboard. All text in German. (Another available.) 361. Relay 102 --- 10 inch rule, no box. Scales: A [B, CI, C] D, K, and, on the back of the slide, S, L, T. White laminate on bamboo. Marked: Relay No. 102, TL-213, Made in Japan, I.K-3. Very good condition. 362. Relay 505 --- 5 inch rule in box. Scales: A [B, CI, C] D, K, and, on the back of the slide, [S, L, T]. White laminate on bamboo. Excellent condition. Black and red slide box with just a few slight marks. 363. Richardson Rule Works 1776 --- Excellent, 10 inch rule, in box. Scales: K, SIN, A [B, CI, C] D, TAN, LOG. White on metal. Marked, Made in U.S.A., Richardson Rule Works, Pat. 1-31-11, 3-26-12. Two holes on the front, with letter scales underneath. Problems/instructions on the back. Complete with cursor. Excellent condition. Brown, two-piece slide box, in very good condition. (Others available.) 364. Ricoh 102 --- New in box, 10 inch rule. Scales: A [B, CI, C] D, K. White laminate on bamboo. Equivalents on the back. Two tone red slide box. Rule still sealed in original plastic. Everything new. 365. Ricoh 105 --- New in box, 10 inch rule, with case and instructions. Scales: K, A [B, CI, C] D, L, and, on the back of the slide, [S, S&T, T]. 25 cm scale on the top beveled edge. 10 inch scale on the bottom edge. Equivalents on the back. White laminate on bamboo. Blue and ivory, two-piece, plastic slip case. 27-page manual. Green and white outer box. Everything new. (Others available.) 366. Ricoh 505 --- 5 inch rule in pigskin case. Scales: A [B, CI, C] D, K, and, on the back of the slide, [S, L, T]. 13 cm scale on the top beveled edge. 5 inch scale on the bottom edge. Equivalents on the back. White laminate on bamboo. Very good condition, just a little dirt. Pigskin, flip-top case in very good condition with some darkening. 367. Rietz 601U Box and Instructions --- Green slide box in very good condition and several-page instructions with just some folds. No rule. Russian Rules: I have a number of Russian rules available, examples of which are listed following. However, not being able to read Russian, I cannot differentiate them very well. Please ask if you are looking for something in particular. 368. Russian Rule --- 5 inch rule. Scales: K, A [B, CI, C] D, L, and, on the back of the slide, [S, L,T]. 13 cm on the top beveled edge and on the bottom edge. White laminate on pearwood. Metal framed cursor. Very good condition. Looks like a Faber. (Others available.) 369. Russian Rule --- 10 inch rule, in case. Scales: K, A [B, CI, C] D, L, and, on the back of the slide, [S, ST,T]. White laminate on mahogany. 1970. Metal framed cursor. Very good condition. Brown, two-piece slide box. (Others, similar, available, made in various years, some as early as 1941.) 370. Russian Rule --- 10 inch duplex rule, in case. Scales: K, A [B, S, ST, T, C] D, DI, and, on the other side, L, LL1, DF [CF, CIF, CI, C] D, LL3, LL2. White laminate on mahogany. 1971 or 1975. Black plastic slip case. (Another available.) 371. Russian Rule --- 10 inch rule, in case. Scales: K, A [B, CI, C] D, L, and, on the back of the slide, [S, S&T,T]. 27 cm scale on top beveled edge and on bottom edge. White laminate on mahogany. Good condition. Black, two-piece slide case/box. Appears to be a Faber, but has Russian-language equivalents on the back. 372. Russian Rule, Very Unusual --- Duplex rule, in box. White laminate on mahogany. Wood cursor guides. 25 cm scale on the top beveled edge. Between the Russian language and odd scales, I can't quite figure the rule out, but at least some of the scales are for temperature. Ask for pictures. Two-piece blue box/case. Very interesting rule in very good condition. (Another available.) 373. Russian Rule -- Like-new, 10 inch rule in case. Scales: K, A [B, BI, CI, C] D, S, ST, T3, L, and, on the back of the slide, [LL1, LL2, LL3]. 27 cm scale on top beveled edge. White plastic. Marked 1980. Hard red two-piece slide case. Everything like new. (Others available.) 374. Russian Rule --- 10 inch rule in case. Scales: L, LL1, DF [CF, CIF, CI, C] D, LL3, LL2, and, on the other side, K, A [B, S, ST, T, C] D, DI. White laminate on a light-colored wood. Plastic cursor. Green vinyl case. Everything in very good condition except for a small tear in the case. Marked 1973. (Others available.) 375. Russian Rule --- Almost new, 10 inch rule in case. Scales: K, A [B, CI, C] D, LL3, and, on the back of the slide, [S, ST,T]. LL2 on the bottom edge. 25 cm scale on the top, beveled edge. White laminate on birch? Lots of Russian equivalents, etc. on the back. Case in very good condition. (Others available.) 376. Russian Multiplication Rule --- an interesting 12 inch rule. No slide, but it has a moving cursor. 9 X 68 celled matrix on each side. White laminate on mahogany. Lots of Russian labeling. Very good condition. Interesting. 377. Sans & Streiffe 311 --- Almost new, 10 inch rule in case. Scales: LL0, LL00, A [B, K, CI, C] D, S, ST, T, and, on the other side, L, LL1, DF [CF, CIF, CI, C] D, LL3, LL2. White laminate on bamboo. Marked, Made in Japan. Almost new, just a few very light surface scratches. The brown leather, flip-top case, marked Sans & Streiffe, is new. (Others available.) 378. Sans and Streiffe Instructions --- Sans and Streiffe, Bamboo Slide Rules, Instruction of General Calculation, No. 311. 24-page paper-covered booklet. Very good condition. 379. Sans and Streiffe Instructions --- Sans & Streiffe Bamboo Slide Rules Duplex Instructions for General Calculation. 36-page, paper-covered booklet. Very good condition. 380. SIC 120-D Instructions --- New instruction booklet for an SIC circular rule. 5 inches X 7 inches, 18 pages. (Others available.) 381. SIC 300B --- New 4 3/8 inch circular rule, labeled both Concise and Scientific Instruments Company. Scales: LL3, LL2, D [C, S, T1, T2, ST] and, on the other side, K, A, D [C, CI, B, L]. Cursor, as well as the rule, has the scale labels. Heavy white plastic. Inner wheels turn on both sides. Made in Japan. Still sealed in original plastic wrap. Black plastic slip case, marked Concise No. 300B. 36-page instruction booklet, Concise Circular Slide Rules and Conversion Tables. Warranty card. Original white box, marked SIC Circular Slide Rule No. 300-B. Everything is new. Everything is original. (Others available.) 382. SIC 1610 --- NEW 5 inch Circular, Model 1610, Roto Rule 400, Scientific Instruments Company Slide Rule. Scales: EI, CI, C, D, A, K, LL0, LL1, LL2, LL3, and, on the other side (LL3, LL2, LL1, LL0 reciprocals), L, DI, D, T, S, T, S, T, ST. The rule is marked Scientific Instruments Company, 1962, Made in Japan. It is white laminate on metal. Inner circle on one side rotates. Also included are an 18-page manual, a warranty card, a brown plastic slip case, and an orange original box to hold everything. Everything is original and new. (Others available.) 383. SIC 4030 --- NEW 4 Inch (4 1/2 inch total length), Model 4030, Junior Mannheim, Scientific Instruments Company Slide Rule. The rule is still sealed in its original packaging. Scales: A [B, CI, C] D and, on the other side of the slide, [S, L, T]. The rule is marked Scientific Instruments Company, 1961, Made in Japan. It is white laminate on bamboo. Also included are a 28-page manual, a warranty card, a brown leather slip case with a pocket clip, and a yellow, blue, and white original box to hold everything. Everything is original and new. (Others available.) 384. Simplon Log Log --- 10 inch rule in case. Scales: LU, A [B, CI, C] D, LL. White laminate on birch(?). Marked: "Simplon" Primary, (Log-Log) Slide Rule, Made in England. Very good condition. Flexible, green and clear plastic case. 385. Staedtler Mars 944 03 --- New, 10 inch in original plastic package, with instruction manual. Scales: T1, T2, K, A [B, CI, C] D, S, ST, L. White plastic with light-blue plastic ends pieces and slide. Marked: Staedtler Mars No. 944 03, Japan. Everything new. 386. Standardgraph 900 --- A 4 3/4 inch circular rule in a leather case. Scales: several standard plus some special-purpose, including conversions between U.S. and British measures. White plastic with clear plastic covering wheel and a plastic cursor. Instructions on the back. Made in West Germany. A little dirty, but otherwise, OK. Brown leather slip case marked Standardgraph. 387. Sterling 538 --- 6 inch rule. Scales: A [B, CI, C] D. Flexible white plastic. Equivalents on the back. Excellent condition. 388. Sterling 587 --- Like-new 5 inch rule with case and instructions. Scales: A [B, CI, C] D, K, and, on the back of the slide, [S, L, T]. White plastic. Back of rule marked, Dow Chemical. (Others, similar, available.) 389. Sterling 594 --- Like-new 10 inch rule, Decimal Trig Multi-Log, with case and instructions. Scales: LL01, K, A [B, T, T, ST, S] D, DI, LL1, and, on the other side, LL02, LL03, DF [CF, CIF, L, CI, C] D, LL3, LL2. White plastic. Gray, flip-top case is slightly dirty and shows a little wear. Instructions have just a few folds. (Others available.) 390. Sterling Precision --- New 10 inch rule, with case and instructions. Scales: A [B, CI, C] D, K, and, on the back of the slide, [S, L, T]. Blue plastic frame with white plastic slide. Case a little dirty. Rule, case, and instructions, new. (Others, new and used, available.) 391. Sterling Decimal Trig Log-Log --- New 10 inch Sterling Decimal Trig Log-Log rule in gray and clear plastic, flip-top case, with instructions. Scales: LL01, K, A [B, T, T, ST, S] D, DI, LL1, and, on the other side, LL02, LL03, DF [CF, CIF, L, CI, C] D, LL3, LL2. White plastic. Rule, instruction booklet, and case, new. (Others, new and used, available.) 392. Sterling Metric Converter --- New, 10 inch rule with instructions. Converts cu. inches to cu. centimeters, cu. meters to cu. feet, cu. meters to cu. yards, liters to quarts, ounces to grams, kilograms to pounds, metric tons to short tons, gallons to liters, inches to centimeters, meters to feet, meters to yards, miles to kilometers, sq. inches to sq. centimeters, sq. meters to sq. feet, sq. meters to sq. yards, sq. miles to sq. kilometers. White plastic with a yellow slide. Instructions included. New. (Others, used, available.) 393. Sun Hemmi --- 10 inch rule in case. Scales: A [B, C] D, and, on the back of the slide [S, L, T]. Sun Hemmi. Made in Japan. Equivalents on the back. White laminate on bamboo. Very good condition. Black, two-piece slide box marked Sun Hemmi' s Bamboo Slide Rule -- just a few wear marks. (Another available.) 394. Sun Hemmi 30 --- Beautiful, new-in-box, 4 inch rule with leather case, instructions, and box. Scales: A [B, CI, C] D, and, on the other side of the slide, [S, L, T]. Less than 1 inch wide. White laminate on bamboo. Still sealed in original plastic. Brown leather flip-top case, marked Hemmi. Instructions in French. In original green and white Hemmi box. Everything brand new. (Others available.) 395. Sun Hemmi 32 --- Beautiful, new-in-box, 4 inch rule with magnifier, leather case, instructions, and box. Scales: A [B, CI, C] D, and, on the other side of the slide, [S, L, T]. Less than 1 inch wide. White laminate on bamboo. Still sealed in original plastic. Brown leather flip-top case, marked Hemmi. Instructions in French. In original green and white Hemmi box. Everything brand new. (Others available.) 396. Sun Hemmi 50 W --- Like new, 10 inch rule in slide box. Scales: A [B, CI, C] D, K, and, on the back of the slide, [S, L, T]. 27 cm scale on the top, beveled edge and a 27 cm scale on the bottom edge. Data on the back. White laminate on bamboo. Excellent condition. Green slide-box, marked Sun Hemmi Bamboo Slide Rule, in very good condition, just some edge and corner rubs. A nice set. (Others available.) 397. Sun Hemmi 64 --- Like-new, 11 inch rule in slide box. Scales: (unmarked) K, A [B, CI, C] D, L, and, on the back of the slide, [S, S&T, T]. A 27 cm scale on the top beveled edge. On the bottom edge, a cm scale running from 13 to 0 to 13. White laminate on bamboo. Marked System Rietz, No. 64, Sun Hemmi, Japan. Equivalents on the back. Rule like-new. Dark green slide box, marked Sun Hemmi Bamboo Slide Rule, shows some wear. The end label says: Sun Hemmi Japan, System Rietz, No. 64. 398. Sun Hemmi 64 T--- New in box, 11 inch rule in slide box. Scales: K, A [B, BI, CI, C] D, DI, L, and, on the back of the slide, [T2, T1, ST, S]. A 27 cm scale on the top beveled edge. On the bottom edge, a cm scale running from 13 to 0 to 13. White laminate on bamboo. Still sealed in original plastic. Marked No. 64T, Sun Hemmi, Japan. Equivalents on the back. Gray and green, cardboard slide box, marked Hemmi Bamboo Slide Rule. The end label says: Sun Hemmi Japan, No. 64T. Everything new. (Others available.) 399. Sun Hemmi 74 --- Beautiful, new-in-box, 5 1/2/ inch rule, with leather case, instruction book, and box. Scales: K, A [B, CI, C] D, L, and, on the back of the slide, [S, S&T, T]. 14 cm. scale on the top beveled edge. White laminate on bamboo. Still sealed in original clear plastic. Brown leather slip case, marked Hemmi. 40-page instruction book. In original green and white Hemmi box. Everything new. (Others, new and used, available.) 400. Sun Hemmi 80K --- New in box, 11 inch rule, electricity, with box and instructions. Scales: Motor (Dynamo, Volt), KW (A) [PS (B), CI, C] D, LL3, LL2, and, on the back of the slide, [S, L, T]. 27 cm scale on the top beveled edge. K scale on bottom edge. Equivalents on the back. Marked: Sun Hemmi Japan No. 80K. 48-page instruction manual. Dark green, cardboard slide box, marked, Sun Hemmi Bamboo Slide Rule. Everything brand new. (Others available.) 401. Sun Hemmi 149A --- Beautiful, new-in-box, 5 inch rule, with box, leather case, and instructions. Scales: L, K, A [B, TI, SI, C] D, LL0, LL/0, and, on the other side, LL/1, LL/2, LL/3, DF [CF, CIF, CI, C] D, LL3, LL2, LL1. Very similar to a Post Versalog 1461. White laminate on bamboo. Still sealed in original clear plastic. Brown leather slip case, marked Hemmi. 48-page instruction book. Everything brand new. (Others available.) 402. Sun Hemmi 250 --- New in box, 10 inch rule in slide box with manual and outer carton. Scales: K, A [B, TI2, TI1, SI] D, DI, and, on the other side, DF [CF, CIF, CI, C] D, L. White laminate on bamboo. Rule marked: Sun Hemmi, Japan, No.250. Cursor marked: Hemmi Japan. Rule in original plastic. 44-page manual. Two-piece gray and blue slide box. Blue and white outer carton. Everything new. (Others, new and used, available.) 403. Sun Hemmi P253 --- New 10 inch Vectolog, with clam-shell case and instructions. Scales: K, A [B, TI2, TI1, SI] D, DI, and, on the other side, LL3, LL2, DF [CF, CIF, CI, C] D, L, LL1. White plastic with green cursor guides. Still sealed in original plastic. Slim 71-page manual. Clear top, yellow bottom, clam-shell, plastic case. Everything is new. (Others available.) 404. Sun Hemmi P253 (Different manual and packaging) --- New 10 inch Vectolog, with case, instructions, and box. Scales: K, A [B, TI2, TI1, SI] D, DI, and, on the other side, LL3, LL2, DF [CF, CIF, CI, C] D, L, LL1. White plastic with green end pieces and cursor guides. Still sealed in original plastic. 48-page manual. Gray and blue hard-plastic case. Green and white outer Hemmi box. Everything is new and beautiful. (Others available.) 405. Sun Hemmi 255D --- New, 10 inch, electricity rule, with leather case. Scales: L, K, DF [CF, CIF, CI, C] D, LL3, LL2, LL1, and, on the other side, Sh1, Sh2, Th, A [B, TI2, TI1, SI, C] D, DI, Iota (?), Theta. White laminate on bamboo. Marked: Sun Hemmi Japan No. 255D. Still in original plastic. Brown leather, flip-top case, marked Hemmi. Everything new. (Others available.) 406. Sun Hemmi 257L --- New in case, 10 inch chemistry rule, with manual. Scales: L, K, A, DF [CF, CIF, CI, C] D, LL3, LL2, LL1, and, on the other side, Ch A-M and N-Z, M1 [M2, degrees F, degrees C, degrees K, LM] mmHg, Kg/cm squared, in. Hg Vac., tw. White laminate on bamboo. Still sealed in original plastic. Brown leather flip-top case. Everything new. (Others available.) 407. Sun Hemmi 259 --- 10 inch rule in case. Scales: LL/1, LL/2, LL/3, DF [CF, CIF, CI, C] D, LL3, LL2, LL1, and, on the other side, L, K, A [B, T, S, ST, C] D, LL0, LL/0. White laminate on bamboo. Marked Sun Hemmi Japan, HJ, No. 259. Very good condition, just a little dirt and a few, tiny, almost imperceptible "cheat notes" lightly scratched into the surface, but not on the scale area. The case is shot. But the rule is nice. 408. Sun Hemmi 259D --- New in box, 10 inch rule in case, with box and instructions. Scales: LL/1, LL/2, LL/3, DF [CF, CIF, CI, C] D, LL3, LL2, LL1, and, on the other side, L, K, A [B, T, S, ST, C] D, DI, LL0, LL/0. White laminate on bamboo. In original plastic. Marked Sun Hemmi Japan No. 259D. Gray and blue plastic slide case marked Hemmi. 48 page instruction manual. Original Sun Hemmi outer carton. A wonderful set. Everything brand new. (Others available.) 409. Sun Hemmi 260 --- New, 10 inch rule in leather case. Scales: LL/1, LL/2, LL/3, DF [CF, CIF, CI, C] D, LL3, LL2, LL1, and, on the other side, LL/0, LL0, K, A [B, T, S, ST, C] D, DI, P, L. White laminate on bamboo. Still sealed in original plastic. Brown leather, flip-top case marked Hemmi. Everything new. (Others available.) 410. Sun Hemmi P262 --- New in box, 10 inch rule in case, with box and instructions. Scales: K, A, R1, R2 [T2, T1, ST, S, C] D, L, LL00, LL0, and, on the other side, LL01, LL02, LL03, DF [CF, CIF, CI, C] D, LL3, LL2, LL1. White plastic with blue slide, end piece, and cursor guides. Still sealed in original plastic. Blue and gray plastic slide case, marked Hemmi, No. P262. 44-page instruction manual. In original Sun hemmi outer carton. Everything new and beautiful. (Others available.) 411. Sun Hemmi 266 --- New in box, 10 inch, 266 Electronics rule, with case/box and manual. Scales: LL(bar)3, LL(bar)2, LL2, A [B, BI, CI, C] D, dBL, S, T, and, on the other side, 11 electronics scales that can't be easily reproduced here. White laminate on bamboo. Still sealed in original plastic. Gray and black, two piece slip case/box. 64 page manual. Outer Hemmi box. Everything is new. 412. Sun Hemmi 1002 --- New in case, 3 inch circular slide rule, with instructions. Scales: A, D [C, CI]. Heavy white plastic with a blue center. Yellow slip case. Instruction manual. Everything new. Very cute. (Others available.) 413. Sun Hemmi (also marked Hughes Owens 1772) 20 Inch Rule --- A 20 inch rule, marked The Hughes Owens Co. Limited No. 1772, also Sun Hemmi Japan, in case. Scales: A [B, CI, C] D, K, and, on the back of the slide, [S, L, T]. 20 inch scale on the top beveled edge. 50 cm scale on the bottom edge. Data on the back. Very wide cursor. A large, heavy rule. White laminate on bamboo. Leather case is solid, but worn. The rule is in very good condition. 414. Sun Hemmi 2634 --- New in box, 5 inch rule with case and manual. Scales: K, DF [CF, CI, C] D, A, and, on the back of the slide, [TI2, TI1, L, SI]. 5 inch scale on the top beveled edge. White laminate on bamboo. Still sealed in original plastic. Brown leather slip case. 44-page manual (for 2664S, 72, 2634, 40F). Green and white outer box. Box and manual both have some storage dirt. Everything new. (Others, new and used, available.) 415. Sun Hemmi 2690 --- New in box, 10 inch rule, with box/case. Scales: L, D [360 degrees, SIN COS, C] D, A, and, on the back of the slide, S, S&T, T. 10 inch scale on the top beveled edge. 27 cm scale on the bottom edge. White laminate on bamboo. Still sealed in original plastic. Gray and green, two piece slide box. With or without green and white outer Hemmi box. Manual available. Everything new. (Others available.) 416. Sun Hemmi Manual 259D, 260, 279D --- 48-page manual for these three rules. (Others available.) 417. Tavernier-Gravet --- A beautiful, very old, boxwood 10 inch rule, marked Tavernier-Gravet, 8 Rue Mayet, 19, Paris on the front, and on the back, Medailles D'Or 1878 et 1888. Unusual, older heavy metal cursor shaped like a reversed letter C. Equivalents and values on the back, in French. Scales: A [B, C] D, and, on the back of the slide, [S, L, T]. 25 cm scale on the top beveled edge and on the bottom edge, continuing to 50 cm in the slide well. Appears to be boxwood Good condition -- just a small sliver out of the front and a few small nicks. A very unusual rule. 418. Tavernier-Gravet --- A beautiful, very old 10 inch rule, marked Tavernier-Gravet on the front, and on the back, J.H. Steward, Strand, London and Medailles D'Or 1878 et 1888. Unusual, older heavy brass cursor shaped like a reversed letter C. Equivalents and values on the back, in French. Scales: A [B, C] D, and, on the back of the slide, [S, L, T]. 25 cm scale on the top beveled edge and on the bottom edge, continuing to 50 cm in the slide well. White laminate on a light yellow wood. Good condition. Partial case. A very unusual rule. 419. Tie Clip Slide Rule --- Swank tie clip slide rule, in original box, with original instructions. Really works. With magnifying cursor. 1 3/4 inches long. White with gold trim. Original snap-close box. Original instructions. Appears to be complete, as originally sold. 420. Unique --- 4 inch rule in plastic case. Scales: A [B, CI, C] D, K. White laminate on birch. Made in England. Clear plastic snap case. Rule and case in excellent condition. 421. Unique F5 (Florida) --- 5 inch rule in box. Marked, The Unique 'Florida' Slide Rule. Made in England. Scales: A [B, CI, C] D, K. White laminate on birch. Trig ratios on back. Blue slide box. Very good condition. 422. Unique Log Log --- Like-new, 10 inch rule in case. Scales: LL2, A [B, C] D, LL3. White laminate on mahogany. Equivalents on the back. Made in England. Like new. Two-piece black slide box somewhat worn. 423. Unique Log Log --- 5 inch rule in box. Scales: LL2, A [B, C] D, LL3. White laminate on birch. Trig ratios on the back. Made in England. Very good condition. Blue slide box. Care sheet. 424. Unique Log Log --- 5 inch rule in box. Scales: LU, A [B, C] D, LL. White laminate on mahogany. Trig ratios on the back. Made in England. Marked: Liverpool Cables. Very good condition. Part of box is missing.. 425. Unique Log Log --- 10 inch rule in case with instructions. Scales: LL2, A [B, C] D, LL3. White laminate on mahogany. Metal cursor guides. Equivalents on the back. Made in England. Excellent condition. Brown, two-piece slide box. Instructions: Half-Hour Instructions for the Use of British Made Unique Slide Rules. (Others available.) 426. Unique Universal --- 10 inch rule in case. Scales: LL2, S, A [B, CI, C] D, T, LL3. Made in England. White laminate on mahogany. Various metals values on the back. Very good condition. Black two-piece slide box. 427. Unique Universal I --- 5 inch rule. Scales: LU, S, A [B, R, C] D, T, LL. White plastic. Made in England. Good condition. 428. Uto Rietz 601 --- New in box 5 inch rule, No. 601 Uto, with case, box, and instructions. Scales: K, A [B, CI, C] D, L, and, on the back of the slide, [S, S&T, T]. 5 inch scale on the top beveled edge. White plastic with yellow slide. Made in Denmark. Hoffman Products (US distributor?). On back of rule: Compliments, Avco, Bay State Abrasives Division. Brown leather (?) slip case. Instruction folder. Green box. Everything new. (Others, used, available.) 429. Weber 4285 N Box --- Box only. Marked: Weber Nr. 4285 N, Made in Germany. Black, covered cardboard. Very good condition except for a 1/2-dime-sized surface tear and a couple of small nicks. Otherwise, like-new. 430. Wichmann 20 Inch Rule --- 20 inch rule in wooden box. No cursor. Scales: A [B, C] D, and, on the back of the slide, [S,T]. 51 cm scale on the top beveled edge. 20 inch scale on the bottom edge. Screws at the ends of the beveled edge and each of the three parts on the rule's face. 11 screws on the bottom edge, one of them missing. Equivalents label on the back is half gone, the rest dirty. White laminate on mahogany. The rule is labeled: Gebr. Wichmann, Berlin, D.R.G.M. the rule is in very good condition except for a few small scratches. The rule appears to have been made by Nestler or Faber. The wooden box, which is in fair condition, may have been owner-made. 431. Wolters - Noordhoff Reitz 87 --- Like-new 8 inch rule in hard plastic slip case. Scales: K, A [B, CI, C] D, L, and, on the back, 15 cm [S, ST, T1]. White plastic with green slide and end pieces. Green and white, hard plastic slip case, marked WN rekenliniaal 432. Wolters-Noordhoff 112 --- 10 inch rule in case. Scales; L, DF [CF, CIF, CI, C] D, A, K, and, on the other side of the slide, [S, ST, T1, T2]. Also, a 25 cm scale on the back. White plastic with a blue slide. Green and white, hard plastic case. Good condition. 433. Wolters-Noordhoff JE 650 --- New 10 inch rule in blue hard plastic slip case. Scales: L, T1, T2 [S, CI, C] D, S, ST, and, on the other side, A, DF [CF, CIF, CI, C] D, K. White plastic with blue ends and some blue highlit scales. Marked: Wolters-Noordhoff No. JE 650, Made in Germany. New. Blue hard plastic slip box, marked Rekenliniall WN, shows a little shelf wear. 434. X-Act 222P --- Essentially new in box, 5 inch rule in brown leather slip case, instructions, and slide box. Scales: K, A [B, CI, C] D, L, and, on the back of the slide, [S, L, T]. An 11 cm, 4 inch scale on the top, beveled edge. Equivalents tables on the back. Labeled: Machine Divided, X-Act, No. 222P - Denmark. Case marked X-Act, Denmark. Rule, case, instructions, and blue slide box, new , just a few small marks on the leather case. Unlabeled: Various 4, 5, 6, and 10 inch rules, without manufacturers' names, are available. Good for inexpensive rules to use. Please ask about them. PLANIMETERS 435. Coradi, Cora-Senior --- A beautiful, more-modern, Swiss planimeter. Body and several other parts are green metal, while the rest is stainless. Serial # 9686. Complete. Guarantee. Gray case with red lining. Everything appears to be essentially new. 436. Dietzgen 1801 --- Actually this very nice polar planimeter isn't marked Dietzgen, but it is the same as the Dietzgen 1801 as shown in the company's 14th edition catalog from 1931. It is marked with a serial #, 50279. Aside from a little dirt, the instrument is in very nice condition as is the black case with purple velvet lining. 437. K+E 4212 --- A very nice, older planimeter, K+E 4212, serial # 4447, English System. In a small, black case, 6 inches X 3 inches x 1 1/2 inches. Listed in the 1915 K+E catalog: Polar Planimeter, German silver, fixed tracer-arm, improved needle pole; with horizontal recording wheel engaging with the measuring wheel and registering its revolutions. However, this instrument is slightly different from the one pictured in the 1915 catalog -- it's probably an older version. Just a little dirt, but very nice. 438. K+E 4240 --- Listed in the 1915 K+E catalog as follows: Compensating Planimeter, German silver and bronzed brass; adjustable tracer-arm about 9 in., fully graduated, pole arm about 7 1/2 in., improved pole weight; Testing Rule and table of settings for inches, in velvet lined Case accommodating the instrument set to any scale. The instrument shows a little wear and has some dirt, but is still quite nice. The case, however, is in poor condition, but at least it's there. 439. K+E 62 0005 --- K+E Compensating Polar Planimeter, with cm measure. With tracer lens. Complete with all parts and the original green case. Set looks almost new, just a few small marks. 440. K+E 62 0015 --- K+E's ultimate polar planimeter, the Paragon Adjustable Arm Compensating Polar Planimeter. Complete in case with instructions. This model has an adjustable tracer arm and an adjustable pole arm. It also has a tracer lens. Complete with the case, all the parts, and the instruction manual. Very few signs of having been used. A beautiful set. 441. K+E 62 0022 --- K+E Adjustable Arm Compensating Polar Planimeter. Complete in case. This model has an adjustable tracer arm and an adjustable pole arm. It differs from the 62 0015 model i that it does not have a tracer lens. Complete with the case all parts. The instrument and the green K+E case look new. BOOKS: SLIDE RULES, DRAFTING TOOLS, AND MECHANICAL CALCULATORS (Most manuals for individual slide rules are listed either as part of that model's rule listing or at the end of the section for that make of rule.) 442. Basic Slide Rule Operation --- Basic Slide Rule Operation, A Program for Self-Instruction. By W.S. Mittelstadt. Second edition. McGraw-Hill, 1964, 1971. Black soft-cover. Spiral bound. 6 X 9 inches. 235 pages. Step-by-step instructions, each step fully illustrated. A very good basic book. 443. The Complete Book of Slide Rule Use --- By Ira Ritow. 200 pages. 6 X 8 inch softcover. Doubleday, 1963. Very comprehensive -- includes various LL and Ln scales. Both the slide rule functions and underlying mathematics are fully illustrated. Includes a chapter on circular rules and one on making your own slide rule. 444. Curta, Instructions for the Use of the --- A fine copy of the original manual. 445. Delights of the Slide Rule --- By Clyde B. Carson. 246-pages, hardcover with dust jacket. Copyright 1964. Includes a chapter on the development of the slide rule, a bibliography, a list of slide rule manufacturers, and pictures of the following rules: K+E 4053-3, K+E Decitrig, K+E Deci-Lon, Pickett N803, Pickett N3, Pickett N4, two Allegany Plastics circular rules, Gilson 8 inch circular, Unique Dualistic, Unique Brighton, Blundell Janus, PIC 221, Aristo 970, Fuller cylindrical, and another Stanley cylindrical. Excellent condition. 446. Der Rechenschieber --- 31-page slide rule manual, in German. 6 inches X 9 inches. Orange soft-cover. Copyright 1947. Shows pictures of several Nestler slide rules. Quite dirty and worn, but interesting. 447. Dietzgen Catalog 22D --- 208 page, soft-cover catalog of slide rules, planimeters, and drafting supplies. Copyright, 1956. Complete with 1957 price list. Good condition. 448. Dietzgen Catalog, Twelfth Edition --- 490 page catalog of Dietzgen tools and supplies. Copyright 1926. Green hard cover with orange lettering. Cover is spotted, but the insides are in very good condition. 449. Dietzgen Surveying Equipment Catalog 77S --- 200 pages, soft cover, 6 inches X 9 inches. In addition to extensive coverage of surveying equipment, also includes pocket slide rules and planimeters. Published in 1958. Includes a separate 1959 price book. Almost new. 450. Directions for Using the Miniature Vest Pocket Slide Rule --- Small 8 page pamphlet describing the use of an A-B-C-D scale rule. 451. An Easy Introduction to the Slide Rule --- By Isaac Asimov. 187 page hardback edition by HMCo. Ex-library copy with a few library marks. Otherwise in very good condition. (Another available.) 452. An Easy Introduction to the Slide Rule --- By Isaac Asimov. 160 page paperback edition by Fawcett. Copyright 1965. Excellent condition. (Another available.) 453. Engineers' and Manufacturers' Catalog No. 34, McPherson's --- 272 page catalog of engineering and manufacturing tools and equipment. Includes slide rules (a few), drafting equipment, machinists' tools, and more. McPherson's is an Australian distributor. 7 inches X 10 inches. Good condition. 454. Elementary Instructions for Operating the Slide Rule --- 6 inch X 9 inch booklet, Elementary Instructions for Operating the Slide Rule - Mannheim Type. Published by K+E. Copyright 1928. 16-page booklet in good condition -- just a few creases and a little dirt on the cover. 455. How Do You Use a Slide Rule? --- How Do You Use a Slide Rule? By Arthur A. Merrill. For Non-Mathematicians and Casual Calculators. Ten Easy Fifteen-Minute Lessons in Multiplication and Division. 6 inches X 9 inches. Orange and gray soft cover. 35 pages. Dover Publications, Inc. Copyright 1961. Excellent condition. 456. How to Use a Mannheim Slide Rule --- 16 page, well-illustrated pamphlet by Dietzgen, copyright 1933. 457. How to Use the Slide Rule --- 100 page, softcover by Forum House, London, Toronto. 1968. 5 1/2 inches X 8 1/2 inches. Includes instructions for log log scales. Lots of practice problems. 458. How to Use a Slide Rule --- 18 page booklet by Dietzgen. Copyright 1942. Some dark soiling (chem lab?) on several of the inside pages, but still readable and useable. Otherwise in good condition. 459. Introducing the Slide Rule --- 32-page, 6 inch X 9 inch booklet. Yellow soft cover. Published by Winsco (Wabash Instruments & Specialties Company), Wabash, Indiana. Copyright 1943. Very good condition. 460. Instruction Manual for 10-Inch Pickett Slide Rule --- 16 page booklet. Copyright 1945, CBCO. 6 inch X 9 inch. Folded and dirty. 461. Instructions for Slide Rules --- Instructions for Post-Trig and Mannheim-Trig Slide Rules, by Ross R. Middlemiss, Washington University. Published in 1945 by Post. 5 inches by 7 inches, 81 pages, softcover. Very good condition. (Another available.) 462. Instructions for Using a Slide Rule --- A 4 inch X 6 inch, 16-page booklet. Copyright W. Stanley & Co. Cover dirty, otherwise in good condition. 463. It All Adds Up --- New, hardcover book: It All Adds Up, The Growth of Victor Comptometer Corporation. 243 pages. Hardbound. Copyright 1968. Historical. Includes discussions and pictures of the Victor Model 110, "the first truly portable (35 pounds) adding machine;" several Victor mechanical machines in ads; The Comptometer; etc. Among other topics covered are the mergers with the McCaskey Register Company and the Comptometer Corporation -- all were Chicago firms. A good historical reference. (Another available.) 464. Keuffel & Esser Catalog, 37th Edition --- Catalogue of Keuffel & Esser Co., Manufacturers and Importers: Drawing Materials, Surveying Instruments, Measuring Tapes (and, of course, Slide Rules, Planimeters, Drafting Sets). Thirty-seventh edition, 1927. Maroon hardcover. Complete, except for separate price list. Generally good condition -- a little spine breaking in front and back. 548 pages. 465. Keuffel & Esser Catalog, 38th Edition --- Catalogue of Keuffel & Esser Co., Manufacturers and Importers: Drawing Materials, Surveying Instruments, Measuring Tapes (and, of course, Slide Rules, Planimeters, Drafting Sets). Thirty-eighth edition, 1936. Maroon hardcover. Complete, including June,1937 price list. Very good condition. 581 pages. (Another available.) 466. Keuffel & Esser Catalog, 39th Edition --- Catalogue of Keuffel & Esser Co., Manufacturers and Importers: Drawing Materials, Surveying Instruments, Measuring Tapes (and, of course, Slide Rules, Planimeters, Drafting Sets). Thirty-ninth edition, 1943. Interim Edition War Catalog. Red and green hardcover. Good condition. 221 pages. 467. Keuffel & Esser Catalog, 40th Edition --- Catalogue of Keuffel & Esser Co., Manufacturers and Importers: Drawing Materials, Surveying Instruments, Measuring Tapes (and, of course, Slide Rules, Planimeters, Drafting Sets). Fortieth edition, 1944. . Very good condition. Red hard cover. 379 pages. (Another available.) 468. Keuffel & Esser Catalog, 42nd Edition --- Green, hardcover. Full catalog. 475 pages. Very good condition except that the missing title page has been replaced with a photocopy. 469. Keuffel & Esser Catalog, 42nd Edition --- K+E Catalog, 42nd Edition, Part 1, Drafting and Reproduction Equipment and Materials, Slide Rules. 1954. 300 pages. Green, soft cover. With separate price list. (Another available.) 470. K&E: How to Take Care of Your K&E Slide Rule, Duplex --- New, small, 10-page pamphlet, 2 inches X 4 inches, red and white cover. (Others, some used, available.) 471. K&E: How to Take Care of Your Slide Rule --- A small, 12-page pamphlet, 3 inches X 4 inches, red cover, with a picture of a Deci-Lon on the cover. (Others available.) 472. K+E Guarantee --- New, 4 inch X 5 1/2 inch sheet with K+E Lifetime Guarantee. (Another available.) 473. K+E Slide Rules and Calculating Instruments Catalog, 1939 --- 24 pages of K+E slide rules and related items. Rose and maroon soft cover. Very good condition, just a little dirt on the cover. (Another available.) 474. Learn Basic Slide Rule on Your Own --- Learn Basic Slide Rule on Your Own, A Modern Programed Instruction Manual. 10 inches by 5 inches. 163+ pages. Developed for Post and uses the Post 1447 as the diagram model. Very good condition with just a little cover wear. 475. A Mannheim Type Slide Rule --- 6 page booklet. 5 1/2 inches X 8 1/2 inches. (Another available.) 476. A Manual for the Slide Rule --- 6 X 9 inch green softcover. By Paul E. Machovina. 1950, McGraw-Hill. 78 pages. Excellent condition. Good basic book, including theory. 477. Mathematics for Electricians and Radiomen (Cooke) --- By Nelson M. Cooke. McGraw-Hill. 1942. 604 pages. Hardcover. Includes a chapter on the slide rule which contains a recommendation that a slide rule, such as the Cooke Radio Slide Rule, be purchased. Very good condition. 478. The Modern Slide Rule --- The Modern Slide Rule, A New and Easy Method for Its Use. By Stefan Rudolf. Published by The William-Frederick Press, 1959. 8 1/2 inches X 11 inches. Soft cover. 69 pages. Includes illustrations of the following slide rules: K+E 9068, K+E 4181-1, Pickett 600, Pickett 803, Post 1460. Good condition. 479. Otis King's Calculator Manual --- Fine copy of operating instructions for Models K and L. 480. C.F. Pease Company Drafting Equipment Catalog G --- 6 inch X 9 inch hardcover catalog. 371 pages. Copyright 1926. Complete with separate price list. A beautiful book with a blue and gold embossed cover. Excellent condition. Includes slide rules, planimeters, and the Pease Slide Rule Holder. 481. Practical Treatise on the Steam Engine Indicator (With Planimeters)--- 5 inches X 8 inches, maroon hardcover, 155 pages plus. By N. Hawkins. Published by Theo. Audel & Co., 1898. Includes great illustrations of steam engine indicators and accessories, pantograph, revolution counter, and several planimeters -- Amsler, Lippincott, Robertson-Amsler, Willis, and Coffin Averaging. Book in good useable condition. Great planimeter reference. 482. A Programmed Sequence on the Slide Rule --- 6 inches X 9 inches. Green soft cover. 64 pages. By Eugene Roberts. Copyright 1962 by The Regents of the University of California. Published in cooperation with W.H. Freeman and Company. Developed "to facilitate computational work in the high school chemistry course." Very good condition. 483. Rule, Slide, Military --- 6 X 9 inch, 35 page manual: TM 6-240, War Department Technical Manual; Rule, Slide, Military, Field Artillery, with Case, 10-Inch. September 1945. For use with the Military Slide Rule, which is pictured. The military slide rule is a specially designed Mannheim-type slide rule for solving Field Artillery survey problems. It can also be used for other arithmetic and trigonometric calculations. 484. Simplifying The Slide Rule --- Pocket-sized paperback, 139 pages, copyright 1964 by Bantam. Written by Robert W. Marks. Introducing the Unifact Method, the Easiest and Most Effective Way Yet Devised for Learning the Slide Rule. Designed to be used with a K+E Polyphase Duplex Decitrig Slide Rule. (Another available.) 485. Simplify Math: Learn to Use the Slide Rule --- By Electronics Teaching Library. Editors and Engineers, Ltd., First Edition, First Printing, June, 1966. 5 inch X 7 inch, brown and white soft cover, 96 pages. Skillfact Library, 642. Excellent condition, just a slight amount of cover yellowing. 486. The Slide Rule --- The Slide Rule. By Burns and Snodgrass. 1958. The English Universities Press Ltd., Teach Yourself Books. 4 1/2 inches X 7 inches. Blue hardcover. Black and yellow dust jacket. 207 pages. Pictures of Unique slide rules. Excellent condition. 487. The Slide Rule --- The Slide Rule. By Rufus T. Strohm. Published by International Textbook Company. Blue hardcover. 5 inches X 7 1/2 inches. 84 pages. Includes a fold-out illustration of what appears to be a Richardson metal rule. Other rules illustrated include the K+E 4053-3 and 4070-3, among others. (Another available.) 488. The Slide Rule --- The Slide Rule, by J.J. Clark. Hardcover. 62 pages. Published by Technical Supply Company, 1909. Includes a fold-out showing several slide rules of the day. Very nice condition, just a little spotting and wear on the cover. 489. The Slide Rule --- The Slide Rule, An Elementary Treatise, by J.J. Clark. Burgundy hardcover. 62 pages. Published by Technical Supply Company, 1921. Includes a fold-out showing several slide rules of the day. Good condition, just a few small tears on two pages. 490. The Slide Rule --- Paper cover, 5 inches X 7 1/2 inches. By I.C.S. Staff. Copyright 1948. 92+ pages. Shows a K+E 4053-3 as the example rule. In just fair condition -- folded once, cover loose, ink stains on cover, small tears on page edges. 491. The Slide Rule and How to Use It --- By Charles Hoarse. London. The Technical Press Ltd. 1053. Red, hardcover, 5 inches X 7 inches. 104 pages. Subtitled: Full, Easy, and Simple Instructions to Perform All Business Calculations with Unexampled Rapidly and Accuracy. With sections on machinery, weights of metal, steam engines, brickwork, timber, strength of ropes, contractors' wages, exchange of money, specific gravity, accelerated motion, travelling of sound, and many more. 492. Slide Rule, How to Use It --- Paperback, 5 inches X 8 inches. By Calvin C. Bishop. Published by Barnes and Noble, copyright 1955. 149 pages. Includes illustrations of and instructions for use of the following types of rules: Polyphase, Polyphase Duplex Trig, Log Log Duplex Trig, Log Log Duplex Vector, Post Versalog, Langsner Industrial. Very good condition. (Another available.) 493. The Slide Rule and How to Use It --- The Slide Rule and How to Use It: A Text-Work Book. Sommers, Drell, and Wallschlaeger. Follett Publishing Company, 1959. Hardback, spiral-bound. 208 pages. Good condition. (Another available.) 494. The Slide Rule and How to Use It --- By Rufus T. Strom and Archibald De Groot. Laurel Publishers, Scranton, PA, 1948/51. Blue hardcover. 95 pages. Includes pictures of and instructions for the K+E 4070 and 4080, also for the Gilson Midget Circular. 495. The Slide Rule and How to Use It --- By Rufus T. Strom. International Textbook Company, Scranton, PA, 1924; Great Britain, 1923. Maroon hardcover. Ex-library. 59 pages. 496. Slide Rule Simplified --- Slide Rule Simplified. Charles O. Harris. Published by the American Technical Society, 1947. 250+ pages. Red hardcover with yellow and black print. Very good condition. 497. Slide Rule Simplified --- Slide Rule Simplified. Charles O. Harris. Published by the American Technical Society, 1943/1946. 250+ pages. Brown hardcover with yellow and black print. Very slight discoloring on part of the cover. Good condition. (Another available.) 498. Slide Rule Simplified --- Slide Rule Simplified. Charles O. Harris. Published by the American Technical Society, 1943/1956. 250+ pages. Brown hardcover with yellow print. Very good condition. Library markings crossed out. 499. Slide Rule Simplified --- Slide Rule Simplified. Charles O. Harris. Published by the American Technical Society, 1972. Third edition. 336 pages. White hardcover with orange and black print. Very good condition. Library markings. 500. Slide Rule Simplified --- Slide Rule Simplified. Charles O. Harris. Published by the American Technical Society, 1943. Appears to be the first edition, first printing. 250+ pages. Gray hardcover with yellow and black print. Excellent condition. Includes the dust cover. 501. The Slide Rule and Logarithmic Tables --- Blue, hard cover. 5 inches X 7 1/2 inches. 219 pages. By J.J. Clark. Third edition. Frederick J. Drake & Co. Copyright 1941. Very good condition. 502. The Slide Rule and Logarithmic Tables --- Burgundy, hard cover. 5 inches X 7 1/2 inches. 222 pages. By J.J. Clark. Third edition. Frederick J. Drake & Co. Copyright 1954. A very nice book which includes a section, Watch Pattern Circular Slide Rules. Excellent condition. 503. Slide Rule, A Textbook for Classroom and Self Instruction --- Soft-cover, spiral-bound, 8 1/2 inch X 11 inch book. Blue cover. By C.L. Johnston, copyright 1960. 110 pages. Includes pictures of the following rules: Dietzgen Maniphase Multiplex, Decimal Trig Type Log Log, 1732; Aristo 970 Log Log: K+E Log Log (4081?); Post Versalog 1460:; Pickett Model 803-ES; and Pickett N4-ES. Very good condition -- a little aging discoloration on the cover. 504. Slide Rule, A Textbook for Classroom and Self Instruction --- Soft-cover, spiral-bound, 8 1/2 inch X 11 inch book. Buff-colored cover. By C.L. Johnston, copyright 1953. 86 pages. Includes pictures of the following rules: Dietzgen Maniphase Multiplex, Decimal Trig Type Log Log, 1732; K+E Log Log (4081?); Pickett Model 800; and Pickett 1010. Good condition -- some aging discoloration. 505. Stanley's Slide Rule Practice --- 32-page, 5 1/2 inch X 8 1/2 inch soft-cover manual. Black and Gold cover. Published by W. Stanley & Company, Peru, Indiana, 1938. Very good condition. 506. A Teaching Guide for Slide Rule Instruction (Pickett) --- 8 1/2 inches X 11 inches. Softcover. 43++pages. By Maurice Hartung. Copyright by Pickett, 1960. This is the book that came with the large Pickett demonstration rules. Includes, separately, three sets of Problems-Answers. The manual itself pictures and describes 15 different Pickett slide rules, plus a chart comparing the rules. 507. The Theory and Operation of the Slide Rule --- By John P. Ellis. 289+ pages. 5 X 8 inches. Orange soft cover. Copyright 1961. Dover Publications. Good condition. Includes a brief history of the slide rule. 508. A Treatise on the Calkins Steam-Engine Indicator --- A Treatise on the Calkins Steam-Engine Indicator, with Descriptions of Calkins' Improved Graduated Pantograph, Polar Planimeter, Speed Measure, Revolution Counter, Parallel Rule, Indicator Spring Weighing Device, Mercurial Column. New York: The Engineers' Instrument Co., 1891. Hardcover. 114 pages. Front endpaper torn, otherwise good condition. Very nice drawing and instructions for the listed instruments. This copy came from the Scientific Library of the United States Patent Office. 509. Using the Slide Rule in Electronic Technology --- By Charles Alvarez. 5 1/2 inches X 8 1/2 inches. 109 pages. Blue-green soft cover. Copyright 1962. John F. Rider Publisher. Very good condition. ARTILLERY 510. FT 90AA-B-3 --- 11 1/2 inch artillery rule, in case. Marked: 400, 7669202, FT90AA-B-3. Lots of scales on both sides of the rule, plus a cursor, but this rule never had a slide. White paint on hardwood, two-sided. Rule marked: 3GUN,90M.M.2. Case is green canvas, marked: Case, Carrying, M-67. Also includes an 11 1/2 inch plastic laminated rule marked, Tables, Correction. Everything in excellent condition. 511. How 8 Inch --- Set of two large rules, each 3 1/2 inches X 18 inches, in a case. White laminate on hardboard. Cursors 4 inches X 4 1/2 inches. First rule marked How 8 Inch, Charge 1 on one side and How 8 Inch, Charge 2 on the other. Second rule marked How 8 Inch, Charge 3 on one side, blank on the other. In a military green, fabric case. Excellent condition. (Others available.) 512. HOW 155mm --- A real slide rule, with both a slide and a cursor, in case. 2 inches X 14 1/2 inches. Laminate on hardwood. Scales on both sides of the slide. Instructions on the back of the rule. Marked: FT 155-AH-1. Cursor stiff. In very good condition except for a slight surface tear on one end, not interfering with the rule's use. In a green canvas case. 513. HOW 155mm --- 3 1/2 inch X 18 inch artillery rule, in case. White laminate on hardboard. Cursor 4 inches X 4 1/2 inches, stuck, needs to be worked loose. One side of the rule is marked Charge 4 and the other Charge 5. In a military green, fabric case. Very good condition. 514. HOW 155mm --- 3 1/2 inch X 18 inch artillery rule, in case. White laminate on hardboard. Cursor 4 inches X 4 1/2 inches. One side of the rule is marked Charge 1 and the other Charge 3. In a military green, fabric case. Rule in very good condition except for some laminate loss on one corner and a little staining on one end. Nothing interferes with the rule's use, however. 515. HOW 155mm --- Two, 3 1/2 inch X 18 inch artillery rules, in case. White laminate on hardboard. Cursors 4 inches X 4 1/2 inches. First rule: one side marked Charge 1 and the other, Charge 3. Second rule: one side marked Charge 5 and the other, Charge 7. Both rules marked: Projectile Illuminating. In a military green, fabric case. Very good condition. 516. 155 MM HW --- Brand new, still sealed in flexible, see-thru plastic, 4 inch X 19 inch rule with 4 inch by 5 inch cursor. Hard clear plastic case (openable) with white plastic scales inside. Many scales. Scales on both sides of the rule. Rule marked: 155 mm hw, Steilbaan. Everything new. A very unusual item. AVIATION 517. Aero Products Research E6-B2 Computer --- New, all-aluminum, E6-B2 Flight Computer, Aero Products Research, Inc. With folding case, which also holds the 44-page instruction manual, apr np-13 plotter folder, registration guarantee, and Aero Products Research catalog. 5 inch circular device with 4 1/2 inch X 9 inch rectangular piece through it. Copyright, 1967. Everything is new. 518. Air Line Flight Calculator --- A 4 1/2 inch circular device with a 5 1/2 inch X 2 inch leg extension. Heavy white plastic. Copyright 1940 by United Air Lines Transport Corporation. Manufactured by The Whitehead & Hoag Co. Two sided. This is one of the more complex-looking devices with lots of variables and gadgets. 519. Air Navigation, Dead Reckoning Computer --- All aluminum, 3 3/4 inch circular device with a 2 1/2 inch by 7 1/2 inch rectangular graph going through it, with case. Type CPU-26 A/P. Made by Felsenthal Instruments Company. Excellent condition. Instructions on the case. Case a little dirty. 520. American Airlines Type B Navigational Computer --- A very nice, 4 1/4 inch circular device made up of four heavy plastic, turning disks. In a beautiful tan, pigskin leather, snap case which also encloses a 32-page booklet of instructions. The case is stamped in gold, American Airlines, Inc. Rule copyrighted 1941 by American Airlines. The booklet is titled, Instructions for Use of Navigational Computer Type "B," Compiled by Engineering Department, American Airlines, Inc., March 4, 1943. The booklet has a little staining and the case is just slightly dirty. Otherwise, everything is in very good condition. A very nice set. 521. ASA E6-B Flight Computer --- A 5 inch circular device with a 9 1/2 inch X 4 inch rectangular graph going through it, with case. All silver metal. Two-sided. Copyright 1987 by Aviation Supplies and Academics, Seattle, Washington. Black rubber slip case. Includes an ASA CP-1 Plotter, plastic with one chipped corner. 522. Computer, Air Navigation, Dead Reckoning, Type MB-4 --- 5 inch aluminum circular device with an 11 inch X 4 inch plastic rectangular graph going through it. U.S. Property. G. Felsenthal & Sons, Inc. In tan, vinyl case. Everything in good condition, just a little dirt. 523. Computer, True Airspeed, Type G-1 --- A black, 8 inch, circular device with two wheels and a cursor. Computer, True Airspeed, A.C. Type G-1. Made by G. Felsenthal & Sons, Chicago. Heavy plastic. Good condition. 524. Dalton Aircraft Navigational Computer, Mark VII --- A 5 inch circular device with a 9 1/2 inch X 4 inch rectangular graph going through it, with case and instructions. White plastic. Also marked Dalton Aerial Dead Reckoning Slide Rule, Model B. Two sided. 23-page instructions marked: Instructions for the Aircraft Navigational Computer, Mark VII; Weems System of Navigation; Annapolis, Maryland; Copyright 1934 by Philip Dalton. Rule and instructions in good condition. Tan leather case is stained and worn. 525. Dalton Dead Reckoning Computer, Type E-68 --- A 5 inch circular device with a 9 1/2 inch X 4 inch rectangular graph going through it, with case and instructions. Metal and plastic. Two-sided. Used in flying. Labeled, Weems System of Navigation, by Phillip Dalton, Annapolis, MD. In brown leather slipcase. 23-page manual. Everything in very good condition. 526. Dead Reckoning Computer --- A black 5 inch circular device with a 9 1/2 inch X 4 inch yellow and green rectangular graph going through it, with two manuals and case. Metal and plastic. Two-sided. Labeled Computer, Dead Reckoning, AN5835-1, F.S.S.C. No. 88-C-1120, G. Felsenthal & Sons. In brown leather slipcase. Two sets of instructions: (1) Handbook of Instructions Army Types E-6B and AN 5835-1, Navy Type FSSC 88-C-1120 Dead Reckoning Computer, December 5, 1943, and (2)Navigational Dead Reckoning Computer Supplement No. 3, Air Navigation Bulletin, June, 1944. Everything in excellent condition. In original cardboard box. 527. Dead Reckoning Computer --- A black 5 inch circular device with a 9 1/2 inch X 4 inch yellow and green rectangular graph going through it. Plastic. Two-sided. Labeled Computer, Dead Reckoning, AN5835-1. G. Felsenthal & Sons. Good condition -- a little dirt and one screw missing. 528. Jeppesen Aircraft Computer, Model CR-2 --- A 4 1/4 inch circular computer device used in flying. Two circles and a cursor on one side, three circles on the other side. Many variables indicated. In a brown, vinyl case. Excellent condition. 529. Jeppesen Slide Graphic Computer, Model CSG-4P --- A 5 inch circular device with a 9 1/2 inch X 4 inch rectangular graph going through it. Plastic. Two-sided. Used in flying. In black slip case. In excellent condition. 530. Jeppesen Navigation Plotter PN-1 --- A two-sided, clear plastic, 13 inch rule with a protractor attached, used in navigation. Very good condition. (Another available.) 531. Mark VIII-C Computer --- 4 1/2 inch circular device. Produced by Pan American Navigation Services and Weems Systems of Navigation. Heavy white plastic. In original brown paper slip case. 532. Professional Flight Computer --- 3 3/4 inch, heavy plastic circular device. ER-1, Professional Flight Computer, Institute for Aeronautical Education. Two-tone blue. In original envelope. Compliments of USAIG, United States Aircraft Insurance Group. 533. The Weems Position Finder --- This is actually a marine navigation item. It is a combination instrument which can be used both to measure angles and plot position, eliminating the need for a sextant. It consists of a protractor with sighting mirrors and three arms. Made of metal and plastic. Complete with instructions and wooden box. The box is 16 inches X 6 1/2 inches X 2 inches. The instrument itself is 15 inches long. The protractor part is 5 inches in diameter. Very interesting. CALCULATORS / SELECTORS (SLIDE RULE TYPE) 534. Air Duct Calculator --- 8 1/2 inch X 4 inch one-sided, cardboard sliding device with one slide and five windows. Copyright 1974 by Robert W. Wadington. On the back, common air duct diagrams and related formulas. Orange, black, and white. Very good condition. 535. Allied Controls Sealed Relays --- 4 inch X 9 inch heavy cardboard sliding device. Two windows on one side, three on the other. Dark blue with red and white trim. Allied Control Company, New York. Slide-Chart Corp., 1954. Perrygraf. Good condition, just a few, small nicks and scratches. 536. Broaching Computer --- 4 inch X 9 inch heavy cardboard sliding device. Six windows on one side, two on the other. Red, white, and black. Instructions on the rule. Apex Broach and Machine Company. Detroit and Warren, Michigan. Very good condition. 537. Broaching Force Calculator --- 3 inch X 6 1/2 inch sliding device. Plastic with cardboard slide. Colonial Force Calculator, Use to Determine Force Required in Broaching. Four windows on one side, two on the other. Instructions on the rule. Blue and yellow. Colonial Broach and Machine Company, Detroit. Good condition. 538. Broaching Guide --- 3 1/2 inch X 7 1/2 inch heavy cardboard sliding device. White with orange and black trim. Six windows on one side, three on the other. Sundstrand Machine Tool, Belvidere, Illinois. Slide-Chart Corp., 1959, Perrygraf. Very good condition. 539. Defactor Calculator --- 3 1/2 inch X 10 inch device. Slide Rule for Computing Radioactivity Decay Factors. Six scales, two windows. White cardboard. Radioisotope data on the back. Good condition. 540. Derck's Gauge Dials --- A very old, very unusual, 5 inch circular device. Three cardboard wheels. The largest encases four small plastic dials around its circumference. Copyright 1913. Many windows on both sides. The variables seem to relate to machining. Indianapolis, Indiana. Some dirt and a few ceases, but still very useable and readable. A very interesting device. 541. Dist-O-Map --- Very interesting, new book of circular devices, by Rand McNally. Seven maps, each with a 7 inch wheel, used to determine the driving distances between various U.S. cities. Bound into a colorful 7 1/2 inch X 8 inch book made of heavy cardboard. 11,000 U.S. mileages between major cities with the turn of a dial. New. 542. Farmetrics --- 3 inch X 8 1/2 inch sliding device for conversions between English and metric systems. Variables include: Volume, Pressure, Energy, Yield, Application Rates, Temperature, Length, Area, and Weight. For farm use. Shades of rose, with red, black, and white trim. International Harvester logo. Light spotting and two small tears, otherwise in very good condition. 543. Fiberglas Calculator --- 6 1/2 inch circular calculator used to determine the cost saving for using fiberglass pipe wrap. Cardboard by Slide-Chart Corp., 1961, Perrygraf Corp. Wheels on both sides. Nice condition. 544. Flowrator Meter Selector --- Fischer & Porter Co., copyright 1956, 7 inch X 2 inch plastic sliding device. Slide both inverts and reverses. Instructions on the back of the rule. It appears as if the rule was made by the Emeloid Co. 545. Food and Labor Cost Calculator --- a 9 1/2 inch X 2 1/2 inch rectangular cardboard and plastic device. Copyright 1955 by General Foods Corp., Institutional Products Division. Four scales on each side. Includes pictures of 30 General Foods food packages. Very good condition. 546. Gear Calculator --- a double-circular device with two 2 1/2 inch wheels mounted side-by-side in a 2 1/2 inch X 4 1/2 inch frame. Six window on each side. White plastic. Presented by The Fellows Gear Shaper Co., Springfield, Vermont. Made by Bastian Bros. Co., Rochester, N.Y. Very good condition -- just a little dirt. 547. Goren Point Count Bidding Wheel --- a 5 1/2 inch circular device for bridge bidding. Green, white, and black cardboard. Instructions on the back. One crease and a little dirt. Otherwise in good condition. 548. Heppenstall Steel Weight Calculator --- a 12 inch X 2 3/4 inch rectangular device. Blue, white, silver, and orange, heavy cardboard. Several scales. Three widows on one side, one on the other. Instructions on the rule. Heppenstall Company, Pittsburgh. Copyright 1941, Graphic Calculator Co., Chicago, Illinois. Some dirt and a few small nicks and creases, but still solid and usable. 549. Honeywell Valve Slide Rule --- New, 3 1/2 inch X 9 1/4 inch rectangular cardboard device with 3 windows on each side, with values for gases, liquids, and steam. In original envelope with a separate instruction card, copyright 1976. 550. Horse Racing Slide Rule --- Kel-Co's Class Calculator for Thoroughbred Race Horses, with case and instructions. 10 inches X 3 3/4 inches. Very heavy white plastic with blue and red scales. Large cursor. Copyright 1971, Kel-Co Publishing, N.Y. 32-page instruction book. Red and clear plastic case to hold everything. Rule and book in very good condition. Case has a small split. 551. Indy 500 Trivia/Timer --- New, 6 inch circular device, in original envelope. Calculates speed from time, for the Indy 500 Speedway. Also has many Indy trivia questions and answers. Donald Davidson's 1987 Indy 500 Trivia/Timer. Red, black, and white cardboard. Distributed by Bryant Heating/Cooling. Made by American Slide-Chart Corp., Wheaton, Ill. (Others available.) 552. Landis Grinding Wheel Calculator --- a 3 1/2 inch circular device mounted in a 3 1/2 inch square frame. One widow on each side. Blue and yellow cardboard. Landis Tool Company, Waynesboro, Pennsylvania. Somewhat dirty, but solid. 553. Ling Dialor --- 6 1/2 inch circular device. Ling, Electronics Division Ling-Altec Electronics, Inc. Dialor for Calculation of Vibration Level for Random Noise of Uniform Spectral Density. Green, black, and white cardboard. Wheels and windows on both sides. Very good condition. 554. Long Distance Rate Wheel --- a 4 3/4 inch circular device mounted on a 5 1/2 inch square backing. For calculating long distance phone rates based on distance between calling points. Has a Bell symbol on it. Effective date: 9-13-77. Thin white cardboard with red and blue trim. Some dirt, one crease, and a nicked corner. Otherwise in good shape. 555. Magnetic Wire Calculator --- 3 inch X 7 1/2 inch rectangular cardboard sliding device. By Rea Magnet Wire Company, Enameled Magnet Wire Data. Window on each side. All sorts of data about magnetic wire. 556. Mark-Up Master --- 2 1/2 inch X 7 inch plastic sliding device with three windows. Readings for Unit, Dozen, Gross, 24 Unit Case, and 48 Unit Case. Presented by Canepa1s Red Cross Products, Chicago. Manufactured by Parisian Novelties Co., Chicago. Very good condition. Slight cracks on the back, hardly noticeable. 557. Metric Converter --- 3 1/2 inch X 8 inch heavy cardboard sliding device, Instant U.S. to Metric Conversions. From Waldenbooks. Nine conversion windows on one side, ten on the other. Variables include: Length, Area, Volume, Weight, Speed, Energy, and Pressure. White with blue and black trim. 1971, Slide Chart, Corporation. Very good condition. 558. Metric Converter --- A 3 1/2 inch X 8 inch plastic sliding device, marked Metric Converter, CrownZellerbach, Nonwoven Fabrics Division. Eight windows on one side: conversions for length, mass, area, and volume. On the back, C and D scales for multiplication, plus a number of conversion factors. 559. Milling Feed and Speed Calculator --- 3 1/2 inch X 8 inch heavy cardboard sliding device. Three windows on one side, one on the other. Wesson's Feed and Speed Calculator. Wesson Company, High Performance Carbides, Ferndale, Michigan. Good condition -- some dirt and a few nicks. 560. Nutri/System Goal Date Wheel --- 5 inch circular device. Rose and white cardboard. For determining the goal date (for weight loss?). Nutri/System, Willow Grove, PA. Copyright 1982, American Slide-Chart Corp. Very good condition. 561. Profit Calculator --- 5 inch circular device for calculating profit margin. White cardboard. Jenn-Air Corporation, Indianapolis, Indiana. Very good condition. 562. Proportional Scale, PS 69 --- 5 inch circular device, Proportional Scale, PS 69. Scales: Reproduction Size [Size of Original, Percentage of Original Size, Number of Times of Reduction]. Flexible white plastic. Made by C-Thru Ruler Company. Instructions on the rule. In original envelope. 563. Proportional Scale, PS 79 --- 6 inch circular device, Proportional Scale, PS 79. Scales: Reproduction Size [Size of Original, Percentage of Original Size, Number of Times of Reduction]. Flexible white plastic. Made by C-Thru Ruler Company. Instructions on the rule. Very good condition. 564. Proportional Scale --- 6 inch circular device, Proportional Scale, PS 79. Scales: Reproduction Size [Size of Original, Percentage of Original Size, Number of Times Reduction]. All plastic. Outer wheel white, inner wheel beige. Made by C-Thru Ruler Company. Instructions on the rule. Very good condition. 565. Pressure Tank Calculator --- 4 inch X 9 inch cardboard, rectangular sliding device. Red, yellow and black. Very good condition. Eight windows. By Automatic Control Company, St. Paul, Minnesota. Made by Perrygraf Corp. 566. Reliability Calculator --- 6 inch circular device. Plastic. Shows Failure Rate Per 1000 Hours at Test Conditions. Scales: Unit Hours, Various Confidence Levels, Number of Failures, Failure Rate, Mean Time Between Failures. Labeled Vitramon Inc., Bridgeport, Conn. Good condition. 567. Reliability Computer --- 4 3/4 inch circular device. White plastic. Arinc Research Corporation, Washington, D.C. Scales on both sides. Slightly dirty. 568. Reliability Slide Rule --- 5 inch circular slide rule. Two-tone tan plastic. General Dynamics Corporation, 1964. Scales and windows on both sides. Includes a manual and plastic slip case. Like new. A very nice, well-made set. 569. Reliability Slide Rule --- 5 inch circular slide rule. White plastic. Department of the Navy. General Dynamics Corporation, 1964. Scales and windows on both sides. Includes a manual and plastic slip case. Like new. A very nice, well-made set. 570. Screw Selector --- 3 3/4 inch X 9 inch rectangular, cardboard sliding device. Four windows on one side, two on the other. Hole Size Selector on one side, Torque Data Selector on the other. Presented by Camcar Screw & Mfg., Taptite Div. Copyright 1971, American Slide-Chart Co. Like-new. 571. Screw, Woodruff Key, Pipe Thread, and Rivet Selector --- 4 1/2 inch X 9 1/2 inch plastic an cardboard sliding device. Thirty-seven widows on one side, twenty-eight on the other. Copyright 1967, Elemoto Sales Co. Some wear and dirt. 572. Shopper's Helper --- a 2 1/2 inch circular device mounted on a 3 inch by 5 inch rectangular backboard. Scales: Weight of Item [Cost of Item, Cost Per Ounce]. Blue and white cardboard. Presented by William J. Scott, Attorney General of Illinois, Consumer Protection Division. Very good condition. 573. Slide-A-Stain --- a 3 1/2 inch X 6 inch device with two windows. Instructions for laundry stain removal. Black and white cardboard. Very good condition. 574. Socket Screw Selector --- 6 1/2 inch X 9 inch cardboard sliding device. Twenty-five windows on one side, twenty-two on the other. Green. Holo-Krome Socket Screw Selector. Holo-Krome Company. Like-new. (Others available.) 575. Speed Calculator for Grinding Wheels --- a 2 1/2 inch circular device mounted on a 3 inch X 4 3/4 inch rectangular backing. Norton Abrasives. Charts on the back: Recommended Wheel Speeds in Surface Feet, and Maximum Peripheral Speeds. Flexible white plastic. Very good condition. 576. Stainless Steel Tubing Guide --- 3 inch X 8 1/2 inch cardboard siding device. Two windows on each side. Trent Weld Stainless Steel Tubing Specifications Guide. Colt Industries, Trent Tube Division. Copyright 1970, Perrygraf. Excellent condition. 577. Star Finder and Zodiac Dial --- A large (11 inch) circular, cardboard device for star and constellation location. Blue star wheel in white mounting. Stars and constellations on chart glow in the dark. Copyright 1970, Hubbard Scientific Company. Excellent condition -- still in original plastic sleeve. (2) 578. Steel Roofing and Siding Calculator --- 3 1/2 inch X 6 1/2 inch cardboard rectangular sliding device. Conversion Scale Calculator for Twin-Drain Strongbarn Corrugated Galvanized Steel Roofing and Siding. Granite City Steel Company, Granite City, Illinois. By Slide-Chart Corp., 1961, Perrygraf Corp. Two windows on each side. Excellent condition. Turquois color. 579. Steel Sheet Piling Quality & Weight Calculator --- 8 1/2 inch X 3 inch cardboard sliding device. Windows on both sides. Copyright 1972 by Perrygraf. Presented by Mississippi Valley Equipment Co. 580. Sylvania Doppler Shift Calculator --- 5 1/2 inch circular cardboard device. White and yellow. Two wheels. Encased in a 12 page instruction book/folder. Very good condition. 581. Tell-A-Coin Circular --- A 6 1/2 inch diameter circular rule with instructions. Used to determine the collector value of Lincoln cents (side 1) and Buffalo nickels (side 2) in 1958. Ten windows on each side. Black, white , and orange. Rule in very good condition. Instructions complete, with a few small tears. 582. Triangulator --- Plastic sliding device, with instructions and envelope. 2 1/2 inch X 5 inch. Double-sided. Buffalo, 15, N.Y. Makes Trigonometry Easy. Like new. 583. Truck Performance Calculator --- Truck Performance Calculator. GM Detroit Diesel Engine Division. Copyright 1956, Perrygraf Corp. 11 1/2 inch X 5 inch, two-sided, cardboard sliding device with one slide and seven windows. Bronze, black, and white. Very good condition. 584. Universal Circle Metric Converter --- cylindrical pencil holder with two rings that turn for metric conversions. 4 inches high, 2 3/4 inches in diameter. Black plastic with white lettering. Very good condition. 585. Universal Circle Metric Converter --- cylindrical pencil holder with two rings that turn for metric conversions. 4 inches high, 2 3/4 inches in diameter. Red plastic with white lettering. Very good condition. 586. The U.S. Standard Measures and Metric Converter --- 3 1/4 inch X 8 inch cardboard device. Conversion measure windows on both sides. Blue, black, and white. Very good condition. 587. Velocity & Pressure Drop Calculator --- 4 1/4 inch X 11 inch very-heavy cardboard sliding device. Five plastic-covered windows on one side, three on the other. Light yellow and blue (very attractive). Tube Turns Division, Chemetron Corp. Copyright 1945 & 1965, Chemetron Corp. Separate, 8 3/4 inch X 11 1/2 inch, folded-cardboard instructions. Everything in excellent condition. 588. Velocity & Pressure Drop Calculator --- 4 1/4 inch X 11 inch very-heavy cardboard sliding device. Five plastic-covered windows on one side, three on the other. Light yellow and blue (very attractive). Tube Turns Division, Chemetron Corp. Copyright 1945 & 1965, Chemetron Corp. Separate instruction sheet, Xeroxed. Everything in excellent condition. 589. Vibration Computer --- 4 inch X 9 inch heavy cardboard sliding device. Four windows on one side, two on the other. Endevco Corporation, Dynamic Instrument Division. Dynamic Instrumentation - Shock, Vibration, Pressure. White with black and red trim. Eighteen scales. Very good condition. 590. Wave Filter Design Guide --- 4 inch X 10 inch very heavy cardboard sliding device. White, blue, and black. Two separate slides. Six windows on one side, two on the other. The two windows relate to two interesting graphs. Instructions on the rule. Genisco Technology Corporation. Copyright 1967. Perrygraf. Very good condition. 591. Westinghouse Life-Line T AC Motor Frame Selector --- 5 X 8 1/2 inches cardboard sliding device. Two sided. 13 windows on each side. Made by Slide-Chart Corp. 1965, Perrygraf Corp. 592. Westinghouse Electric Motors --- 3 1/2 inch X 7 inch plastic and cardboard, rectangular sliding device. Orange and blue. Very good condition. Squirrel Cage Life-Line Motors, Westinghouse Electric Corporation, Copyright 1957. Seventeen windows on each side. Made by Graphic Calculator Company, Chicago, Illinois. 593. Wiring Device Selector --- 4 3/4 inch X 11 inch cardboard sliding device. Five windows on one side, seven on the other. Yellow, green, and white (attractive design). Nema Wiring Device Selector. Presented by Hubbell Wiring Device Division. Copyright 1977, Perrygraf. Like-new. 594. Yield Scale (Stocks) --- 5 inch rule. Scales: Dividend or Coupon Rate [Market Price] Current Yield. Thin white plastic. No cursor intended. Instructions on back. Issued by Lane, Peper & Jaffray, Inc. Good condition -- a little dirt and a little bowing. CALCULATORS -- MECHANICAL 595. Addiator (Duplex, Large) --- Unusual, large, two-sided Addiator. Addition and multiplication on one side, subtraction and division on the other. Large: 4 1/4 inches X 6 1/4 inches. Nine pull-down columns on each side. One side gold and black, the other silver and black. Large clearing bar. A little surface wear, but still very nice. 596. Addipresto Adding Machine --- New in box, gray, 5 1/2 X 5 1/2 X 3 1/2 inch, plastic and metal adding machine with 7 pull-down wheels. Complete with clearing lever and stylus. Made in Italy. In original cardboard box. 597. AddoMeter Model List --- Small, 4-page brochure describing the six AddoMeter models. 598. AddoMeter --- Almost new, AddoMeter in original, heavy-duty, snap-close case and instructions. By the Reliable Typewriter & Adding Machine Corporation, Chicago, Ill. Metal (brass?) unit. 2 1/2 inches X 11 1/2 inches. Flat. Eight dial-type wheels (0-9). Built-in stylus and clearing lever. Eleven inch rule on the top, beveled edge. Almost-new condition. The case is wood, covered in black fabric, with a green felt pad inside. It has snap closures and is marked: AddoMeter Adding Machine is in very good condition. Instructions included. A very nice set. (Others like this available.) 599. AddoMeter --- AddoMeter by the Reliable Typewriter & Adding Machine Corporation, Chicago, Ill. Metal (brass?) unit. 2 1/2 inches X 11 1/2 inches. Flat. Eight dial-type wheels (0-9). Built-in stylus and clearing lever. Eleven inch rule on the top, beveled edge. Very nice condition, just a few very light scratches. (Others available.) 600. AddoMeter --- AddoMeter with original box, by the Reliable Typewriter & Adding Machine Corporation, Chicago, Ill. Metal (brass?) unit. 2 1/2 inches X 11 1/2 inches. Flat. Eight dial-type wheels (0-9). Built-in stylus and clearing lever. Eleven inch rule on the top, beveled edge. Very nice condition, just a few very light scratches. The original box has lots of copy and is sort of art-deco-looking -- the end flaps are missing, but it's still very interesting. The calculator works well and looks good. 601. American Adding Machine --- American Adding Machine by American Can Company, Adding Machine Division, Chicago, Illinois. A neat, pull-down-lever, hand-crank type adding machine. Black metal with fillagree-type design all over. 7 inches X 9 1/2 inches X 8 inches. Seven pull-down levers. Two cranks. Seven circular answer windows above the levers. Very good condition. Heavy for its size. 602. Arithma Addiator --- Like-new, Arithma Addiator with stylus, case, and instructions. 1 1/2 inches X 6 1/4 inches. Thin. Metal. Silver and black. Six pull-down columns for addition and six for subtraction. Pull-up lever on top for clearing. Brown slip case. Instructions. Everything like new. (Others available.) 603. Baby Calculator --- Baby Calculator with instructions. Chicago. 3 inches X 6 inches. Metal. Black and gold. Seven pull-down columns. Clearance lever at the top. Marked: Addition, Subtraction, Multiplication, Division. Unit in very good condition with a few small scratches. Instructions show wear and tear. (Another available.) 604. Burroughs Calculator (Comptometer-Type) --- 9 inches X 11 inches X 4 inches. Black frame. Nine columns of 9 keys per column. Good condition. 605. Calculator Pen --- Labeled: Computer, Made in Italy. (Black, or yellow, or green) ballpoint pen that shows multiplication tables up to 10 X 10. Each push of the retraction button changes the multiplier, from 1 through 10. The answers show up in ten windows, labeled 1 through 10. Very interesting. (Several available.) 606. Chadwick --- Adder with 7 finger pull-down wheels. Blue-green plastic. With red clearing lever. 4 1/4 inches X 3 1/2 inches X 4 inches. Made in Japan. Nicely made. 607. Comptometer --- Comptometer by Felt & Tarrant Mfg. Co., Chicago. 9 1/2 inches by 14 1/2 inches. Copper-colored metal case. Ten rows of nine keys per row. In good condition. Two key covers missing. Last patent date, November 2, 1920. 608. Comptometer --- Unusual Comptometer by Felt & Tarrant Mfg. Co., Chicago. 8 inches by 15 inches. Copper-colored metal case. Eight rows of nine keys per row. In good condition. Patent numbers, no dates. Unusual lever near the right-side crank, loops around to pull down lower left key 1. 609. Comptometer --- Comptometer by Felt & Tarrant Mfg. Co., Chicago. 9 inches by 14 1/2 inches. Green metal case with rounded corners. Eight rows of nine keys per row. Good condition. Patent numbers, no dates. 610. Comptometer --- Comptometer by Felt & Tarrant Mfg. Co., Chicago. 9 1/2 inches by 14 1/2 inches. Copper-colored metal case. Ten rows of nine keys per row. In good condition. Last patent date, November 2, 1920. 611. Comptometer Card --- 4 inch X 9 inch card, Decimal Equivalents of Common Fractions to be Used in Connection with the Comptometer. By Felt & Tarrant Mfg. Co. Some pencil marks and a middle fold, otherwise in good condition. 612. Cullimom Pencils --- Metal box, marked Cullimom, Brevillier-Urban A.G., containing 7 wood pencils with multiplication tables on them. 613. CURTA Type 1 --- A beautiful Curta Type 1 in case. Serial# 78185. In hard plastic case. With excellent manual copy. 614. Desk Add-A-Matic --- Almost new, Desk Add-A-Matic adding machine, in box. By CMI, Inc., Chadwick, Japan. 5 inches X 5 inches X 3 1/2 inches. Black and gray metal with 7 red, pull-down dials. Clearing button. Stylus built-in. Original red and black box show some wear and tear, but the calculator is almost new. 615. Dial-A-Matic Adding Machine --- Dial-A-Matic Adding Machine, with box and stylus. By Sterling. 2 1/2 inches X 8 inches. Four dial-type wheels. Ivory plastic. The unit is in excellent condition. The box is complete, but coming apart a little. (Another available.) 616. Dial-A-Matic Adding Machine --- Dial-A-Matic Adding Machine, with box. By Sterling. 3 1/2 inches X 11 1/2 inches X 1/2 inch. Six dial-type wheels. Ivory with green trim plastic. Clearing lever. The unit is in very good condition, just one small, faint mark on it. The box is missing one end and is slightly crushed, but is generally in good condition. 617. Dial-A-Matic Adding Machine/Pencil Box --- Dial-A-Matic Adding Machine - Pencil Box, with stylus and instructions. By Sterling. 2 1/2 inches X 8 inches X 3/4 inch. Four dial-type wheels. Yellow with clear back. Plastic. The unit, except for a crack on the back, is in very good condition, as are the stylus and instructions. 618. Fractomator --- A large two-sided Addiator, 9 pull-down columns on each side. Column 1 is 16ths, column 2 is inches, columns 3-9 are feet. Addition on one side, subtraction on the other. Clearance bar on top. Calculator is 4 X 7 inches. Mounted in a very heavy, green folding stand, marked Addiator. 619. Kess-Add --- Almost new, four-dial, pocket adder with case, stylus, instructions, and box. 5 inches X 1 1/2 inches X 1/2 inch. White plastic with a similar stylus. Box and instructions. Everything almost new. (Another available.) 620. Lightning Adding Machine --- The Lightning Adding Machine, with bakelite stand. The Lightning Adding Machine Co., Los Angeles, Calif. Green metal unit. 2 1/2 inches X 12 inches. Flat. Seven dial-type wheels (0-9). Brown bakelite, slanted stand. The unit and stand are in excellent condition. (Several similar units and variations are available. Please ask.) 621. Lightning Calculator --- The Lightning Calculator, with wooden stand, and box. The Lightning Calculator Co., Grand Rapids, Michigan. Black metal unit. 2 1/2 inches X 12 inches. Flat. Seven dial-type wheels (0-9). Brown wooden, slanted stand. The unit has some scratches on it, but it works fine. The wooden stand is in very good condition. The black triangular-shaped box shows considerable wear. (Another available.) 622. Little Giant Adding Machine --- 5 pull-down wheels. Wooden outer body. Metal works. Made by Kel-San Mfg. Co., Dayton, Ohio. 5 inches X 6 inches X 5 1/2 inches. Fair condition, but works. 623. Magic-Brain Calculator --- New, Magic-Brain Calculator, compete with stylus and instructions, still in original wrapping. 2 1/2 inches X 6 inches. Six pull-down columns. Clearance lever at the top. Silver metal front with red plastic back. New in package. 624. Magic Multiplying Pencil --- 5 1/2 inch long mechanical pencil/calculator. Main body is red-painted wood. Clear cylindrical tube turns to multiply up to 12 X 12. Apex Products Corp., N.Y.C. Has a 40's look. (Also another one, 6 1/2 inches long.) 625. Precise Calculator --- Precise Developments Co., Inc., Chicago. Heavy metal, gray body. 7 pull-down columns. 7-window answer section, behind a magnifying lens. Built-in stylus. Large metal clearing lever. 4 1/2 inches X 7 inches X 5 inches. Very good condition. A very solid instrument. 626. Produx Original --- Produx Original calculator. 2 1/4 inches X 6 inches. Seven pull-down columns on the top for subtraction and seven on the bottom for addition. Made in Germany - West. Metal. Green and gold. Clearing bar on top. Green and clear plastic slip case with metal stylus. Everything in very good condition. 627. Resulta 7 --- Resulta 7, marked Export. Made in West Germany. 7 pull-down columns. Stylus included. All metal. 3 1/2 inches X 6 inches X 4 1/2 inches. 628. Ropp's Commercial Calculator --- Copyright 1887. Ropp's Commercial Calculator. 4 inch X 6 1/2 inch, red folder cover with black printing. 128 pages plus blank notebook pages and a small accordion folder in the back. Good condition. (Another available.) 629. Ropp's New Calculator --- Copyright 1906. Ropp's New Calculator. 3 1/2 inch X 6 1/2 inch, red cloth cover with black printing. 160 pages. Very good condition, just some wear on the outside spine. 630. Ropp's Commercial Calculator --- Copyright 1919. Ropp's Commercial Calculator. 4 inch X 6 1/2 inch, tan cardboard cover with black printing. 192 pages. Very good condition, just some light soiling. 632. Slinky Calorie Counter --- a 6 inch long, plastic, figure-eight-shaped device for cumulating calories. A phone-like dial is turned to add calorie counts (or any other counts) which show on an adjacent dial, going up to 2000. 633. Speedee Add-A-Matic --- Chadwick, Speedee Add-A-Matic. 11 inches X 9 inches X 4 inches. Manual calculator. 8 rows of keys, keys numbered 1-5. 9 answer windows. Dollars and cents. Gray plastic body with ivory and maroon keys and maroon clearing button. Made in Japan -- a very Japanese approach to calculation. Excellent condition. Fully functional. 634. Sterling Multiplier Pencil Box --- 8 inch yellow and white plastic pencil box with sliding multiplier and inch and cm scales. Includes a pencil sharpener. 635. Summit --- Summit calculator. 5 inches X 7 inches X 5 inches. Green metal body. 8 finger-pull-down wheels. Crank for clearing. Made by the Pearl Engraving Corp., New York 3, New York. Very good condition -- just a touch of surface rust on the screws and a little surface wear. A very solid unit. 636. Swift Handy Calculator --- Swift Handy Calculator, with box, cover, instructions, and stylus. 5 1/2 inches X 5 inches X 3 1/2 inches. Aqua-colored plastic body with seven pull-down lever-dials. Plastic stylus and clear plastic cover. Instructions. Made in Hong Kong. Outside box has a small tear and some slight dirt and wear. Instructions and calculator are in very good condition, just a slight amount of usage wear. 637. Sylvania Photo Calculator Mechanical Pencil --- Black, white, and gold mechanical pencil with two rotating barrels for five photo settings: Flash Lamp, Shutter, Film Type, Aperture, and Feet. 638. Tasco Pocket Arithmometer --- Essentially new, Tasco Pocket Arithmometer, complete with stylus, case, and instructions. Calculator like-new, 3 inches X 5 1/4 inches. Bright chrome-finish metal. Eight pull-down columns. Clearing lever at the top. Cover slides up and down for addition and subtraction. Heavy duty. Instructions, case, and stylus in very good condition. (Others available.) 639. Tip Calculators (2) --- A pair of 7-pull-down-column calculators. Pocket sized. Each with stylus and instructions. Gold colored, in fold-over wallet. Packed in the original shipping box from H. Martin, Chicago. Very early stamps. Unusual. 640. Universal Multiplier Pen --- New, 7 inch long ballpoint pen, with a rotating barrel that multiplies up to 12 X 20. Black and green (or red, or blue, or light green, or yellow). Made in Italy. (6) (Plus one used green.) 641. Ve-Po-Ad --- Ve-Po-Ad calculator with case and instructions. Eight pull-down columns. Clearance lever at the top. Black and gold metal. In black folding case. Instructions. Rust on the calculator and some wear on the case. Overall, just fair. (Another available.) 642. Victor Comptometer Corporation Book --- New, hardcover book: It All Adds Up, The Growth of Victor Comptometer Corporation. 243 pages. Hardbound. Copyright 1968. Historical. Includes discussions and pictures of the Victor Model 110, "the first truly portable (35 pounds) adding machine;" several Victor mechanical machines in ads; The Comptometer; etc. Among other topics covered are the mergers with the McCaskey Register Company and the Comptometer Corporation -- all were Chicago firms. A good historical reference. (Another available.) 643. Wizard Calculating Machine --- 3 inches X 5 1/2 inches. Eight pull-down columns. Silver metal front. Black plastic back. Clearing bar on the top. No stylus and one part of the stylus clip is broken; otherwise, OK condition. 644. Wolverine Adding Machine --- 6 inches X 9 inches X 4 1/2 inches desk-top (toy?) adding machine. Sloped top. Four pull-down-with-the-fingers columns. Blue and red. Considerable scratching and some rust. DRAFTING AND RELATED EQUIPMENT Many other drafting sets and other drafting tools are available. Please ask. 645. Alvin Proportional Divider --- New in case, 8 inch proportional divider. Alvin No. 255. In black case lined with blue velvet. A beautiful instrument. 646. Bar Compass --- 12 inch bar compass. Round bar with fine, micro adjustment. Very good condition. A very nice instrument. 647. Bar Compass --- A beautiful bar compass in a tray. Marked: Compass, West Germany. Extends to 30 inches. 648. Barch-Payzant Lettering Pen --- Barch-Payzant (freehand) Lettering Pen, No. 3224. Manufactured by Keuffel & Esser Co. Patent, Feb. 1, 1921. Brass tip with black handle. In original slide box. Like-new. 649. Brass Drafting Set --- 7-piece, brass drafting set in small, 5 1/2 inch X 3 1/2 inch, wooden box. Complete. Protractor in lid compartment. 650. Brass and Ivory Drafting Set --- 11-piece drafting set (missing 6 pieces) brass, plus brass protractor. Pen with ivory handle. Walnut case marked: Vigliani, Torino, 23 Via Lagrange -- also engraved, Marrria G. 651. Collins Engineering Drafting Set --- 9-piece drafting set, complete. Very nice. Appears to be a 19th century design. Nickel-silver? Even includes the wrench. Black case with pin latch. Interior of case marked, The Collins Engineering Company, Scranton, Pa. 652. Dietzgen Drafting Set, 1170 --- Beautiful 10-piece drafting set, # 1170. Excellent condition. Missing only the small-parts capsule. Black, leather-covered case with slide catches and blue velvet lining. Brass protractor and several additional rules, etc. under the top flap. Very nice older set. 653. Dietzgen French Curve --- Dietzgen 12152-6 French curve. 654. Drafting Set --- 6 piece (two not from the original set) plus ruler and protractor. Pin-lock case. 655. Drafting Set (Ivory) --- A very old, 7-piece set (one piece missing) with an ivory-handled pen. Pin-lock case. 656. Drafting Set, Ivory --- A very nice, unusual, old 8-piece drafting set. Ivory pen handle and small parts holder. Beautiful tools. Case marked: Drawing.Surveying Instruments, Yasukawa & Co., Yokohama. 657. Drafting Set, Brass --- A beautiful 6-piece brass drafting set in an interesting leather-covered case with hook latches. Made for Etuis De Mathematique, France. 658. Drafting Set, Brass --- Beautiful, very old, 6-piece brass drafting set. Pin lock black case. Marked: Johann Gronemann, Vienna. 659. Drafting Set (Very Old) --- A very old, two-piece, brass drafting set in a cloth-covered, wooden two-piece slide case. The compasses and dividers are each 6 inches long. The dividers have a unique, inter-leafed hinge. The pieces are certainly no later than 19th century, perhaps 18th. 660. Drafting Set (Old) --- A seven piece drafting set in a black, purple-lined case. Silver-colored plating over brass. Interesting, unusual compass design. 661. Drafting Triangles --- Several sizes and manufacturers. 662. Engineering Drawing --- Book by French and Pierce. 8th edition. Tan hardcover. 715 pages. Good condition. 1953, McGraw-Hill. 663. Faber Pencils --- New in box, 3 dozen blue-lead wooden pencils. Pencils dark blue with gold end and printing. Marked, A.W. Faber, Berkeley, U.S.A., 827 Blue. Box Marked. A.W. Faber, Berkeley, Thin Colored Lead, Hexagon 827, 3 Dozen, Blue, Made in U.S.A. 664. French's 7th Edition Quiz Questions -- Booklet by John M. Russ. 1948, McGraw-Hill. 53 pages. Very good. 665. Ivory-Handled Drafting Set, Large --- Beautiful, older,16-piece set. Includes 4 ivory-handled pens, proportional dividers, 7 compasses. The tops of the ivory pen handles screw off to reveal a sharp metal point. Case is 6 X 8 1/2 inches. Label reads: A. Nakamura & Co., Ltd., Tori-3 Chrome, Nihonbashi, Tokyo, Japan. A very nice set. 666. Ivory-Handled Drafting Set --- Complete, beautiful 12-piece drafting set in case. Ivory handles on the two pens, plus an ivory small parts holder. A beautiful, delicate, 19th century set. 667. K+E Apollo Drafting Set --- Almost new, K+E 99 5546, Apollo Custom Series Drawing Instrument Set, in case and box. 6 pieces, chromed, with large bow compass, long extension, large dividers. Tan tweed snap case with soft, brown lining. Polishing cloth. Original green outer slide box. A nice set for collecting or use. 668. K+E Beam Compass Pencil Parts --- New in box, the two slide pieces for a beam compass using a pencil point. K+E # 9154-2. (Others available.) 669. K+E Drafting Rule --- 6 inch rule, in case. K+E 1399W. White plastic. Green trim. The Maurer Company. Rochester, N.Y. Green leather K+E case. Good condition. 670. K+E Drafting Rule --- 6 inch rule, in case. K+E 1420. Boxwood. Tan leather case. Good condition. 671. K&E Drawing Instruments Catalogs--- Two K&E drawing/drafting instrument catalogs from 1925. Bound into one softcover volume. Titles: K&E Drawing Instruments (Paragon, Anchor, Minusa, Arrow, and Key), 102 pages; and Drawing Instruments and Materials for High Schools, Preparatory Schools, and Manual Training Schools, 53 pages. Plus price lists for both. A quarter-size hole in the cover, plus a little nick, otherwise, in very good condition. A great reference. 673. K+E Favorite Wyteface 50 Ft. Rule --- Green metal case and white metal blade. Good condition. 674. K+E Jupiter Ruling Pen --- New in box, 5 1/2 inch K+E Jupiter Ruling Pen. K+E item number 55 25226. In green slide box. Everything is new. (Another available.) 675. K+E Minusa Special Drafting Set 796 --- Almost new. Complete with two large and three small compasses, accessories, and two pens. Case. 676. K+E Minusa Series S Drafting Set --- Virtually new, 9-piece set. Minusa tubular design. Black snap case with blue velvet lining. Set number S795 1/2. This would be a wonderful set for both display and use. The set appears never to have been used. 677. K+E Minusa Large Compass Set --- Set number 768-2. A beautiful, tubular large compass with a pen point, separate ink pen, extra pen handle, and parts container. Black leather-covered case with blue velvet lining. Beautiful set. 678. K+E Minusa Special Drafting Set --- Complete with two large and three small compasses, accessories, and two pens. Case. Useable, but used condition. 679. K+E Paragon Engineers' Chain Scales Set --- Virtually new, in box, set of 8 K+E Paragon rules. Wood with white laminate edges. Set number 1593P, 12 inch, divided 10, 20, 30, 40, 50, 60, 80. 100 parts per inch. Box is wood with black covering and black velvet lining. A beautiful, virtually new set. 680. K+E Protractor, Large Circular --- 10 inch diameter, clear plastic circular protractor. K+E 1273-10. Excellent condition. 681. K+E Protractor-Triangle, Adjustable --- Green see-through plastic. K+E 57 0213 8 inch, Luxlite, Denmark. Like new. 682. Ivory (real ivory) Protractor Rule: 4 1/2 inch X 1 1/2 inch ivory rule with protractor and various scales inscribed on it. Very good condition, just a little dirt/ink staining -- cleanable? 683. Kern Drafting Set --- A beautiful, top-quality, Swiss, 18-piece drafting set. Like new. With pin lock case, black with blue velvet interior. For someone who would like a wonderful set to use and/or display. 684. Mechanical Pencil with Measuring Scale --- Square-bodied, sliver-colored, mechanical pencil with inch markings on one side. Engraved: Chas. Haas, Blue Island, Ill. Also -- Refeco, Bavaria. 685. Nautical Parallel Rules, Brass --- 18 inch nautical, brass parallel rules. Marked T.S. & J.D. Negus. Excellent condition. 686. Pantograph, Lutz --- Beautiful, two-tone wood pantograph by The Lutz Co. Like new. In original box, with instructions. 687. Parallel Rules, Mayline --- Almost new in box, 15 inch, black plastic parallel rules, No. 5501, Mayline Company Inc., Sheboygan, Wis. 688. Pickett Model 238 Architect's Metal Adjustable Rule --- Brushed aluminum 12 inch rule. Pickett Model 238. Arch: 1/16, 1/8, 1/4, 1/2, 1:1, 2:1. Almost new. 689. Posts Rule 1222 --- 6 inch boxwood rule. Small nick on one edge. Slight surface wear. Otherwise, OK. 690. Preevess (?) and Son Compass Set --- Three beautiful, small, spring compasses in a 4 1/2 inch square, maroon leather-covered case with spring latch. Beautiful set. 691. Protractor-Rule --- Like-new, two-sided, boxwood protractor-rule. 6 inches X 1 1/2 inches. 692. Put-Lines Mini-Drafting Machine --- A 9 1/2 inch, rolling drafting rule. Made of Lexan, with metal rollers. Very nice. In original plastic snap case. 693. Riefler Drafting Set --- 17-piece set. Interesting, unusual tubular design. DR Pat. No. 2997? Two pens with ivory handles. Third pen with broken handle. Otherwise, complete. A really interesting-looking set. 694. Scripto Mechanical Pencils --- Nine pencils, marked State of California, plus three other pencils in an old case. 695. Sharkskin-Covered, Wooden, Pocket, Cased Drafting Set --- Black covered case in fair condition. Brass dividers and one alternate leg inside. 696. Ships Curves --- Two large (17 inch) French curves. 697. Slidecomp Drawing Compass -- A unique drawing compass that works like a small beam compass rather than the standard divider-type compass. Has a sliding scale to set the circle size, up to a 3 inch radius. Beige plastic. Neat item. (Another available.) 698. Triangular Rule --- 12 inch hardwood triangular rule. E.B.B. & S., N.Y. Good condition. 699. Use and Care of Drawing Instruments --- Use and Care of Drawing Instruments, Eugene Dietzgen Co. Copyright 1930. 5 1/2 inch X 9 inch softcover booklet, 23 pages with illustrations. 700. Use and Care of Drawing Instruments --- Use and Care of Drawing Instruments, Eugene Dietzgen Co. Copyright 1949. 5 1/2 inch X 9 inch softcover booklet, 32 pages with illustrations, including parts kits. 701. Weber Drafting Set --- Very nice 8-piece set of tubular design. F. Weber Co., Philadelphia, Pa. Black case with green velvet lining. 702. Weber Cosmos Drafting Set --- An almost-new, 10-piece drafting set of tubular design. F. Weber Co., Philadelphia, Pa. Black case with green velvet lining. Set number 3876. Missing only the adjustment screw on the small pencil compass. 703. Wichmann Drafting Set --- Over twenty pieces, vintage, silver-colored metal. Includes six compasses, all with with tubular arms. Excellent condition. Beautiful and unusual design. High quality. In a 5 inch X 11 inch black case with a pull-pin latch and black velvet inside. Case in good condition. ABACUS 704. Abacus --- 2 inch X 6 inch black plastic frame with 11 columns of white beads. Marked: Made in Japan, K-1278. Very good condition. 705. Bead Arithmetic (Manual) --- 4 1/2 inch X 6 inch booklet. The Fundamental Operations in Bead Arithmetic (How to Use the Chinese Abacus). Red cover. 55 pages. Translation of an original book written in the 14th century. Excellent condition. OTHER INSTRUMENTS 706. Calendar, Brass --- Heavy brass, circular desk calendar, 5 inch diameter. Calendar for 40 Years, 1956 to 1995. Dial turns to set the dates. Built-in folding stand. 707. Geneva Lens Measure --- A 2 inch diameter, metal, circular device used to measure lens curvature. Patent dates ranging from 1891 to 1902. F.A. Hardy & Co., Chicago. A beautiful, heavy device. Looks like a pocket watch. Needs internal cleaning to work properly. 708. Golfometer --- Essentially new in box, dial-type, metal cased meter to measure distances walked. 1 3/4 inches in diameter chromed case with belt clip. Two dials, yards and miles. Instructions. Original box. Made by the New Haven Clock and Watch Company, New Haven 4, Connecticut. A nice, well-made instrument. 709. Magnifying/Measuring Device --- Heavy-duty, metal device with a lens moved by a screw against a 1 1/2 inch measuring surface, divided in quarter inches. Overall measurement of the device is 4 X 2 1/2 X 2 inches. Mainly black. Marked Alfred Sutter Co., N.Y. In black, blue-lined, wooden box. 710. Map Measure, K+E --- Pocket-watch style map measure. 1 3/4 inch diameter. Chrome. Excellent condition. In original box. Box reads: Map Measure 62 0320, 100 Ft.In; Ft., In., 8ths. 711. Micrometer, Boxwood and Brass --- Very nice, old, 4 1/2 X 1 inch micrometer by Becker Hatton Wall, London. Boxwood and brass. 712. Mystery Instrument --- A very nice Mystery Instrument. Handle attached to a 90 degree, metal protractor, 4 inches long. Ivory or celluloid handle. Separate 360 degree wheel, to fit on handle? Plus a short metal thing. All in a very nice 5 1/2 inch X 3 1/2 inch black case with maroon velvet interior and old catch. Picture available. 713. Polemoscope --- A 2 inch long optical device for seeing secretly at a 90 degree angle. A reproduction of an 18th century device used in opera houses. Made of wood with brass ends, by Van Cort Instruments, Northhampton, Mass. New in box. 714. Scherr Scale/Pressure Gauge --- A small, pocket-sized dial device registering weight/pressure up to 30 grams. Geo. Scherr Co. Inc., New York 12, N.Y., Arpo, Made in France. In hard case with latch. 715. Sike's Hydrometer with Boxwood Slide Rule --- Beautiful Sike's Hydrometer by T.O. Blake, 57 Hatton Garden, London. Brass hydrometer with all weights marked Sikes. Thermometer on ivory backing, marked T.O. Blake, 57 Hatton Garden, London. Mahogany case with maker's label in ivory inset on the top. Boxwood proof slide rule with brass ends. This is as close to new as any similar set that I have seen. Beautiful. Excellent to display. 716. Sikes Hydrometer with Boxwood Slide Rule --- Mahogany box with ivory inset reading: Sikes Hydrometer, L. Lumley & Co. Ltd., 1 America Sq., London E.C. Boxwood slide rule also marked with the company name. All weights except the 5. Ivory backed thermometer is from another set. It is marked: Dring & Fage, 66 Stamford St, London. 717. Sike's Hydrometer with Two Boxwood Slide Rules --- A beautiful set. Items are marked, A. Franks, Optician, Manchester. Mahogany box. Two boxwood slide rules. All 10 brass weights and the brass float are beautiful. Ivory backed thermometer (slight chip of the thermometer glass on the non-working end; doesn't affect operation.) This is truly a beautiful set. 718. Sike's Hydrometer --- Beautiful Sike's Hydrometer by Loftus, 6 Beaufoy Terrace, London. Brass hydrometer with all weights marked Loftus. Thermometer on ivory backing marked Loftus London. Mahogany case with maker's label in ivory inset on the top. Also inlaid decorative border. Information and some instructions on the bottom of the box. A really beautiful old set. 719. Sike's Hydrometer with Two Ivory Slide Rules --- Sike's Hydrometer by Aronsburg, Manchester. Complete: brass hydrometer with all weights, thermometer on ivory backing (marked Aronsburg Manchester), and two ivory proof slide rules. Mahogany case with maker's label in ivory inset on the top, plus and added ivory label -- Re-Adjusted by Loftus, 321 Oxford St., London. In very good condition. This is a wonderful set. 720. Stanley Spirit Level --- Very nice brass spirit level in a brass-trimmed, walnut (?) box. The level is marked 1872, Stanley, London. The box is marked Spirit Level, 1872, Stanley, London. The box has brass corners as well as a brass plate on top. On the bottom of the box is pasted a label: Cousens & Son, Chronometer and Watch Makers, Opticians & Nautical Instruments Manufacturers, 20, Wind Street, Swansea. The box is 7 inches X 2 1/2 inches X 1 3/4 inches. The level has a 6 inch and a 15 cm scale on it. Dick Rose 2605 Ridgefield Rd. Kalamazoo, MI 49024, U.S.A. 616-323-3070 rarose@prodigy.net
