This collectible plate block of four 8-cent United States postage stamps depicting transistors and a printed circuit board was issued to honor progress in electronics.
Issue Date: July 10, 1973
First City: New York, NY
Printed By: Bureau of Engraving and Printing
Printing Method: Lithographed, engraved
Mint, never hinged condition.
We often have multiple copies of this item in stock; the plate number and/or position may vary.
1-2 business days
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