Description
This collectible plate block of four 2-cent US postage stamps was issued to honor American educator and theologian Mark Hopkins.
Issue Date: March 14, 1940
First City: Williamstown, Massachusetts
Printed by: Bureau of Engraving and Printing
Printing Method: Rotary Press
Perforation: 10 ? x 11
Color: Rose carmine
Mint, never hinged condition.
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