37c Flag
In line with the change on June 30, 2002, the new rate change flag definitives were revealed on June 7th. 

The flag stamps, bearing similar design of the "United We Stand" definitive of 2001, come out in 19 formats of nondenominated and denominated 37c. The stamps incorporated microprinting, tiny letters  into the design of a stamp to thwart counterfeiters in several formats: water-actived panes of 100 (micro-word "USA"), self-stick panes of 20 (micro-word "USA") self-stick convertible panes of 20 (micro-word "USPS") for nondenominated, and self-stick panes of 20 (micro-word "USA"), self-stick convertible panes of 20 (micro-word "USPS") for denominated 37c stamp.
 

Nondenominated (37c) Flag Definitive
Date of Issue
June 7, 2002; Washington, D.C
Photographer
Pictor International
Designer, Art Director and Typographer
Terrence W. McCaffrey, Washington, D.C.
Colors
black, cyan,  magenta, yellow
Gum
water-activated
self-adhesive
 
pane of 100
pane of 20
pane of 20
(convertible bklt format)
double-sided pane of 20
(convertible bklt format)
vending bklt of 20
ATM 
pane of 18
Coil of 100
Modelers
Joseph Sheeran
BCA
Donald H. Woo
AD
BEP
Printing Processes
offset
gravure
Printers
SS under contract to AP
AP
BCA
APC under contract to SSP
AD
BEP
Presses
Heidelberg 840
Stevens variable-size security press
Goebel 670
Rotomec 3000
Dia Nippon Kiko
Andreotti 601
Papers
nonphosphored
type III, overall tagged
prephosphored type I
prephosphored type II
nonphosphored
type III, overall tagged
prephosphored type II
Image Size
0.71 inches by 0.82 inches 
0.72 inches by 0.83 inches
0.82 inches by 0.72 inches 
0.71 inches by 0.82 inches
Quantities
35 million stamps
N/A
1.2 billion stamps
400 million stamps
300 million stamps
300 million stamps
2.5 billion stamps
Plate 
Numbers
"P" followed  by four single digits
"B" followed by four single digits
"S" followed by four single digits
"V" followed by four single digits
four single digits

 
 
37c Flag Definitive (Pane)
Date of Issue
June 7, 2002; Washington, D.C
February 4, 2003
Photographer
Pictor International
Designer, Art Director and Typographer
Terrence W. McCaffrey, Washington, D.C.
Colors
black, cyan,  magenta, yellow
Gum
self-adhesive
 
pane of 20
pane of 20
(convertible bklt format)
double-sided pane of 20
(convertible bklt format)
vending bklt of 20
pane of 10
(convertible bklt format)
ATM pane
of 18
ATM pane of18, Convertible Book 
Modelers
Joseph Sheeran
BCA
Donald H. Woo
AD
Printing Processes
offset
gravure
Printers
AP
BCA
APC under contract to SSP
AD
Presses
Stevens variable-size security press
Goebel 670
Rotomec 3000
Dia Nippon Kiko
Papers
prephosphored type I
prephosphored type II
prephosphored type II
nonphosphored
type III, overall tagged
nonphosphored
type III
Image Size
0.71 inches by 0.82 inches 
0.72 inches by 0.83 inches
0.72 inches by 0.83 inches
0.72 inches by 0.83 inches
0.82 inches by 0.72 inches 
Quantities
100 million   stamps
1.8 billion stamps
600 million stamps
200 million stamps
500 million stamps
200 million stamps
200 million stamps
Plate 
Numbers
"P" followed  by four single digits
"B" followed by four single digits
"S" followed by four single digits
"V" followed by four single digits

 
37c Flag Definitive (Coil)
Date of Issue
June 7, 2002; Washington, D.C
Photographer
Pictor International
Designer, 
Art Director and Typographer
Terrence W. McCaffrey, Washington, D.C.
Colors.
black, cyan,  magenta, yellow
Formats
self-stick coil of 100
self-stick coils of 3,000 and 10,000
water-activated coils of 100, 3,000 and 10,000
modelers
BEP
GG
Donald H. Woo
Printing Processes
gravure
printers
BEP
GG under contract to BCA
APC under contract to SSP
presses
Andreotti 601
Cerutti R118
Rotomec 3000
papers
prephosphored type II
prephosphored type I
prephosphored type II
gums
self-adhesive
self-adhesive
water-activated
quantities
2.9 billion stamps
50 million stamps
(coil of 3,000)
200 million stamps 
(coil of 10,000)
25 million stamps
(coil of 1,00)
300 million stamps 
(coil of 3,000)
50 million stamps 
(coil of 10,000)
Image Sizes
0.71 inches by 0.82 inches
0.71 inches by 0.82 inches
0.72 inches by 0.81 inches
plate numbers
four single digits
 "B" followed by four single digits
"S" followed by four single digits

 
Note:

AD: Avery Dennison, Clinton, S.C.
AP: Ashton Potter USA Ltd., Williamsville, N.Y
APC: American Packaging Corporation, Columbus, Wis.
BCA: Banknote Corporation of America, Browns Summit, N.C
BEP: Bureau of Engraving and Printing, Washington, D.C.
GG: Guilford Gravure, Guilford, Conn.
SSP: Sennett Security Products, Chantilly, Va.
SS: Sterling Sommer, Tonawanda, N.Y.

Original information and image from USPS News and Linn's Stamp News