13c Eagle & Shield single, 1975, National Postal Museum; 15c Fort McHenry Flag single, 1978, National Postal Museum, © United States Postal Service, All Rights Reserved; 13c Flag Over the Capitol single, 1977, National Postal Museum.

I join the Smithsonian Institution in celebrating the Fourth of July by sharing these historical stamps from the National Postal Museum‘s collection. The Smithsonian has been preserving America’s history and sharing the stories, ideals and indomitable, innovative spirit that unite all Americans for more than 170 years.