Photograph of people working on the fuselage framework of an unidentified aircraft, circa 1910s-1930s.Inscription: "Thors Polson [written backwards on negative]."Inscription on envelope: "Thors Polson."
Oblique aerial photograph of Crissy Field, San Francisco, California, circa 1910s-1930s.Inscription: "Crissy Field [written backwards on negative]."Inscription on envelope: "Crissy Field."
Photograph of military aircraft on display, including a Loening OL seaplane (fuselage number 25-228), circa 1910s-1930s. Inscription: "S.F. Airport [written backwards on negative]."Inscription on envelope: "S.F. Airport."
Photograph (reproduction) of the R34 airship in flight, circa 1910s-1930s. Inscription: "British dirigible R-34 / 10700."Inscription on envelope: "British dirigible R-34."
Photograph of U.S. Navy servicemen and an unidentified aircraft on a ship deck, circa 1910s-1930s. A Southern Pacific steamship is visible in the background.
Photograph of a ship (designation "Lorna") towing an unidentified aircraft, circa 1910s-1930s. "Service Plane / Pacific Air Transport" is painted on the fuselage of the aircraft.Inscription: "Aeroplane [written backwards on negative]."