U.S. #1502
15¢ Microphone and Speaker
Electronics Progress Issue
Issue Date: July 10, 1973
City: New York, NY
Quantity: 39,005,000
Printed By: Bureau of Engraving and Printing
Printing Method: Lithographed, engraved
Perforations: 11
Color: Gray green and multicolored
Celebrates the progress made with component parts in the electronics field. Emile Berliner invented the microphone; Thomas Edison, the vacuum tube; and Vladimir Zworykin, the photoelectric cell, which brought television to life in 1928.
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Combined Shipping (domestic)
If you buy more than one item from us, depending on size and weight you may qualify for a combined shipping discount. If your items qualifies for combined shipping we will repackage your items refunding the savings at the time of shipping.
When purchasing postage stamps there are three categories of shipping we use that have tracking numbers;
eBay 6x9 paper envelope for up to 3 oz Generally 4 to 5 days transit time. Tracking information not always dependable
Standard 1st Class Mail for up to 15 oz Arrives within 2 to 3 days.
Priority Mail for above 15 oz Arrives within 2 to 3 days
Please note that chipboard stiffeners are used in every envelope shipment which adds to the overall weight.