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This listing is for a used, cancelled copy of the 1973 8-cent "Progress in Electronics" postage stamp. Issued on July 10, 1973, this stamp celebrates the rapid advancement of electronic technology, specifically commemorating the 25th anniversary of the invention of the transistor at Bell Telephone Laboratories.
Item Details: Scott Number: #1501 Issue Date: July 10, 1973 Condition: Used / Cancelled (as shown in photos) Design: Features a detailed illustration of transistors and a printed circuit board, highlighting the shift from vacuum tubes to modern semiconductors
Please review the high-resolution photos to inspect the specific "wave" cancellation mark and the stamp's overall physical condition.
