Photograph of a pilot seated in the cockpit of a Stearman C-3B aircraft, circa 1929-1931. An insignia for the Aeronautics Branch of the U.S Department of Commerce is visible in the fuselage.
Part of a photograph album related to Julius A. Barr's…
Photograph of servicemen with a Department of Commerce Stinson SB-1 Detroiter aircraft, circa 1926-1927. Inscription on album page: "Dept. of Commerce plane."Part of a photograph album related to Julius A. Barr's flight training with the U.S. Army…