Photograph of a De Havilland D.H.4 ambulance aircraft (fuselage designation A.S. 68188), circa 1910s-1930s.Caption on envelope: "DH-4 ambulance / Side / 60."
Photograph of a De Havilland D.H.4 ambulance aircraft (fuselage designation A.S. 68188), circa 1910s-1930s. A compartment on the fuselage is open to show a rescue basket.Caption on envelope: "DH-4 ambulance / 3/4 rear / 43."
Photograph of a De Havilland D.H.4 aircraft in low flight, circa 1910s-1930s. Caption: "De Haviland [sic]."Caption on envelope: "DH-4 in flight / Side."
Photograph of a De Havilland D.H.4 aircraft taking off, circa 1910s-1930s.
Caption: "De Haviland [sic]."
Caption on envelope: "DH-4 take-off / 3/4 front below."
Photograph of a German Fokker D.VII aircraft (fuselage designation 775G/18), circa 1914-1919. The aircraft is painted in lozenge camouflage.Caption on envelope: "Fokker D-VII / 3/4 rear / 25."
Photograph of William E. Doherty piloting the Langley Aerodrome A aircraft over Lake Keuka, New York, September 17, 1914.Caption on negative: "Sept 17-14."Caption on envelope: "Langley Aerodrome in flight / 105."
Photograph (reproduction) of the airship "Boomerang" on fire, Waterville, Maine, September 2, 1908. Pilot Charles O. Jones is visible at the controls. Shortly after this photo was taken, the airship plunged to the ground and Jones fell to his…