United States - 11c airmail stamp of 1973 (#142332) | StampData

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Source: Colnect

Issued by:	United States
Function:	airmail
Date:	7/10/1973
Issue:	Progress in Electronics
Denom:	11c

Color:	multicolored
Design:	two De Forest audions
Watermark:	unwmk
Perf:	11


Catalog value:

In collections: used (Stan Shebs)

Prev: 8/17/1972 11c issue=Olympics 1972 d=five skiers perf=11x10.5
Next: 1/2/1974 26c ultra&blk&car d=Mount Rushmore (1974)

External links:
Colnect 101944..tes_of_America

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