1973 Progress in Electronics Sheet of 50
Updated September 5, 2026
| Lot number | 88 |
| Estimate | 25.00 - 35.00 USD |
| Auction | LR Antiques Estate Liquidators Gentleman's Collector Auction |
| Date | September 13, 2026 at 8:27 PM CDT |
| Auction house | LR Antiques |
| Location | Houston, Texas |
Full mint sheet of 50 U.S. 11¢ commemorative stamps issued in 1973 honoring Progress in Electronics. This design features the Diode as part of the Electronics Progress series illustrating the development of electronic components. Complete with full selvage, ZIP Code mascot, plate number, and "Mail Early in the Day" margin inscription. Excellent condition. A great collectible for science, technology, and U.S. stamp collectors.
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