The Smithsonian’s National Postal Museum opens its new William H. Gross Stamp Gallery to the public Sunday, Sept. 22. Named after its primary benefactor, it is the world’s largest stamp gallery and ...
24c Curtiss Jenny inverted block of four, 1918 This upside-down blue plane within a red frame is the most famous U.S. stamp and one of the world’s most famous printing errors. Only one misprinted ...
The postage stamp that started it all is going under the gavel. The coveted 18th-century rarity, known as the Penny Black, was the world’s first postage stamp and represents the very dawn of social ...
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