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 of a U.S. Army seaplane in flight, circa 1920s-1930s. Caption on verso: "Hydro Aeroplane."Inscription on verso: "Army tractor, with pontoon attached."Stamped on verso: "Photo by H. M. Benner / Hammondsport, N. Y."
Photograph of a U.S. Army North American BT-9 Yale aircraft (fuselage number 324), December 29, 1936.Inscription: "(G-92P-115) (12-29-36) (10) North American."
Photograph of five U.S. Army Air Corps Douglas O-38 aircraft in flight over mountainous terrain, February 6, 1931. Caption: "(O39-92P-115) (2-6-31) (12-4100)."