William H. Gross Stamp Gallery | Smithsonian Institution

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The Smithsonian’s National Postal Museum opens its new William H. Gross Stamp Gallery to the public Sunday, Sept. 22.

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Image: Smithsonian's National Postal Museum

10c Washington on Pony Express Cover

10c Washington on Pony Express cover, 1860. Loan from William H. Gross.
A Pony Express rider carried this cover, considered one of the most historically significant in U.S. postal history. Notice the notation on the front: “recovered from a mail stolen by the Indians in 1860.”
Image: Smithsonian's National Postal Museum

24c Curtiss Jenny

24c Curtiss Jenny inverted block of four, 1918. Loan from William H. Gross.
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 sheet of 100 stamps was sold.
Image: Smithsonian's National Postal Museum

Amelia Earhart Solo Transatlantic Flight Cover

Amelia Earhart solo transatlantic flight cover, May 20, 1932.
On her historic solo flight across the Atlantic, Earhart carried 50 pieces of unofficial mail—each postmarked before and after landing, cacheted, numbered, and autographed to document the record-setting event.
Photo: James O’Donnell

Amelia Earhart's Flight Suit

Amelia Earhart’s flight suit, 1920s.
Image: Smithsonian's National Postal Museum

Apollo 15 Lunar Mail Cover

Apollo 15 Lunar Mail cover, 1971. Postmaster General’s Collection. Loan from USPS.
Image: Smithsonian's National Postal Museum

Hindenburg disaster card

Hindenburg disaster card, May 6, 1937.
Image: Smithsonian's National Postal Museum

July 4, 1776, John Hancock cover

July 4, 1776, John Hancock cover. Loan from George Jay Kramer.
This letter to John Hancock was handstamped in New York on July 4, 1776—birthday of the United States of America.
Image: Smithsonian's National Postal Museum

Letter Mailed Aboard RMS Titanic

Letter mailed aboard RMS Titanic, April 10, 1912.
Image: Smithsonian's National Postal Museum

Silk Road Letter

Silk Road Letter, 1390.
Image: Smithsonian's National Postal Museum

Swedish Feather Letter

Swedish feather letter, c. 1808.

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