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Open daily 10 a.m. to 5:30 p.m.
Admission is always free!
2 Massachusetts Ave., N.E. Washington, DC 20002
The museum's main entrance is located on the corner of First Street and Massachusetts Avenue NE. Other entrances have variable hours.
Owen J. Gromme (1896-1991). Born in Fon du Lac, Wisconsin, and spent most of his career at the Milwaukee Public Museum. His image of Shovelers appears on the 1945 duck stamp.
Mary T. Sheahan, National Postal Museum