Query: Gray, Percy, 1869-1952
Archives Center, National Museum of American History

Flirtibird verso Almost Cried

Freer Gallery of Art and Arthur M. Sackler Gallery Archives

Ernst Herzfeld Papers

National Air and Space Museum Archives

Botts (R. H.) 1904 Flying Machine [Negatives]

National Anthropological Archives

Four Projectiles Drawing

Archives Center, National Museum of American History

"Get a Move on Old Man!"

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