Now showing: United States - Airmail stamps (1970 - 1979) - 1 stamps.

1973 Progress in Electronics

10. July WM: None Design: Walter y Naiad Einsel. Engraving: Bureau of Engraving & Printing. Perforation: 11

[Progress in Electronics, type BG]
No. Type D Mint Condition Unused Used Letter/FDC
77 BG 11C 0.29 - 0.29 0.88 USD  Info
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