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."
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]."
Photograph of an unidentified aircraft (tail number NX2939), circa 1910s-1930s. "Big Bear Lake, Calif." Is painted on the fuselage, along with emblems for Sammy Mason's Hollywood Hawks and Kendall oil.