From 1908 until 1963, the collection was housed in the Arts and Industries Building, where it was a very popular display. In 1964, the collection moved to the new National Museum of History and Technology, now the National Museum of American History. There the collection expanded to include postal history and stamp production. In 1971, the museum opened a reconstructed general store and post office from Headsville, West Virginia, that served as a working post office.
In addition to stamps, the Museum also collects postal stationary, postal history material that pre-dates stamps, vehicles used to transport the mail, mailboxes, meters, greeting cards, covers, and letters. The museum also houses other unique bits of postal history. For example, Owney, a stray dog, became the Railway Post Office mascot in 1888, crisscrossing the country, picking up medals and tags from his stops on his collar, until he died in 1897. Owney was preserved by taxidermy, and came to the Museum’s collections in time for its opening in 1993.
- Chronology of the National Postal Museum
- Bibliography of the National Postal Museum
- Historic Images of the National Postal Museum
- National Postal Museum Records from the Smithsonian Institution Archives
- Historic Picture Highlights of the National Postal Museum
- Additional Records and Collections of the National Postal Museum Across the Smithsonian