Description
This collectible plate block of four 37-cent postage stamps was issued by the USPS to honor American scientist Robert Millikan, winner of the Nobel Prize for physics in 1923 for his experiments studying the charge of electrons.
Issue Date: January 26, 1982
First City: Pasadena, CA
Printed By: Bureau of Engraving and Printing
Printing Method: Engraved
Perforations: 11 x 10 ?
Color: Blue
Mint, never hinged condition.
We often have multiple copies of this item in stock; the plate number and/or position may vary.
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