| Title | Author | Publication | Date | Pages | Comments |
| Humaita | HGR | Filigrana | Oct 1974 | 21-23 | Cancel |
| Identificación de los | Weisz, Pedro | Revista de las | Oct 1962 | 99-102 | Plating of 1 Real |
| 100 campos del 1 | Sociedad Filatelica |
| In the Airship "Graf | Ziegler or | L'Union Postale | Dec 1931 | 1-12 | Zepp |
| Zeppelin" to South | Reichspostministeriu |
| Interesting Paraguay | Fireside Shop | Linn's Weekly | Sep 27, 1941 | 762 | Quantity issued |
| Cover | Stamp News |
| Introducing | Van Beveren, J. | Aeropostal History | BOOK | 163 | Cover |
| Combi-Mail | [trans] |
| Inverted Center | Sellinger, Martin | BOOK | 1993 | 18-19 | Listing of inverted |
| Stamps of the World | centers |
| J.K. in Meppen | anon | Illustriertes | Feb 5, 1910 | 51 | Notes 10 in red on |
| Briefmarken Journal | 10 on Telegraph |
| Jesuit stamp for | Malz, Leo | Mainsheet | Feb 1984 | Members page | Fantasy |
| Paraguay and |
| Katapultpostkatalog: | Haberer, Erich | BOOK | 3-97 | Catapult mail |
| Südamerika |
| Ladouce, Th. In | anon | Vertrauliches | Jan 1906 | 14 | Warning about |
| Asuncion | Korrespondenz Blatt |
| Land of | Mulford, | Weekly Philatelic | Apr 9, 1938 | 142 | History |
| Astonishment - | Montgomery | Gossip |
| Land of the Lion and | Mueller, Barbara R. | Scott's Monthly | Mar 1957 | 1-4 | General |
| Liberty Cap | Journal |
| Latest from | Spanton, H. G. | Stamp Collecting | Oct 6, 1934 | 69 | Quantities issued |
| Paraguay |
| Latest Imposition | anon | American Stamp | 1869 | 55-56 | Bogus "Ship" |
| Mercury | stamps |
| Latin American | Rolfe, H. Neslon | Mekeel's | Jul 17, 1944 | 39 | Notes Paraguayan |
| Bulletin | journal - Revista |
| Latin American | anon | Linn's Weekly | Oct 12, 1940 | 787-789 | General notes |
| News and Notes | Stamp News |
| Latin American | Watchorn, Hugh | American Philatelist | Apr 1968 | 325-326 | Counterfeits |
| Notes | Cathederal of |
| Latin American | Watchorn, Hugh | American Philatelist | Apr 1968 | 325-326 | Counterfeits |
| Notes - 1929 |
| Latin American | Watchorn, Hugh | American Philatelist | Oct 1968 | 911 | Bogus issues |
| Notes - Paraguay |
| Latin American | Watchorn, Hugh | American Philatelist | May 1966 | 625-626 | Counterfeits |
| Notes: Paraguay | Gunboat issue |
| Latin American | Todsen, Thomas K. | Transit Postmark | May-Jun 1977 | 25 | Cancellations |
| Railway Postoffices | Collector |
| Le Rio de la Plata | Antonini, E, & | Histoire Postale des | 1984 BOOK | 111-117 | Cancellations |
| Grasset, J. | Lacs et des Rivieres |
| Legitimate | Van den Berg, | Van den Berg list | Jan-Feb 1979 | 8 | Offer of errors |
| Paraguayan Errors | George (Lowell |
| Leon Parado de 3 | anon | Revista Filatelica | 80 | Says 877 copies of |
| Reales | Paraguaya | 3R of 1870 exist |
| Leones del Paraguay, | Bayer, Eugen | Revista del Centro | Sep 1969 | 14-15 | Lion designs |
| Los | Filatelico del |
| Letter to the Editor | Pearse, A. F. | The Philatelist | May 1977 | 239 | Info on Giesecke & |
| Devrient |
| List of Remainders: | anon | Philatelic Record | Oct 1898 | 226 | 1870- 1Real; 1884 |
| Paraguay | issues |
| Los Nuevos Sellos | anon | Revista de la | 95-96 | 1892 issues |
| Postales del | Sociedad Filatelica |
| Los ultimos sellos | Cassanello, Lorenzo | Chile Filatelico | Aug 1932 | 28 | Quantities & date of |
| triangulos Zeppelin | B. | issue |
| Mail Auction | anon | Pedret, Juan Carlos | Dec 3, 1999 | Lots #1938-1997 + | Auction |
| pictures |
| Saturday, February 19, 2000 | Page 6 of 42 |