Identification guide for design numbers on United States stamped envelopes, wrappers, and letter sheets
"forever"

(updated 13 December 2014)



There are 2 designs [through 2013] of indicia whose face value is "forever", each design distinctive enough that it can be identified by examining the images below.

Liberty Bell
design U199
 =  Scott #U667 (multicolored on white paper)
 
purple martin
design U204
   multicolored on white paper and shared by U677 (design size 33 mm x 48 mm) and U678 (35 mm x 50 mm)

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