Photograph of a Thomas-Morse S-4C aircraft (tail number 38739), circa 1910s-1930s. Another aircraft is visible in the background.
Caption on envelope: "Thomas Morse SC-4 / 73."
Photograph of a Curtiss OX-5 aircraft (tail number 22677, fuselage number 22693), circa 1918. Caption on envelope: "Standard J Curtiss Model OX-5 / 1918."
Photograph of a SPAD XIII aircraft (tail number S16541) of the 22nd Pursuit Squadron, U.S. Army Air Service, circa 1917-1920s. The squadron's "shooting star" emblem is visible on the fuselage.Caption on envelope: "SPAD XIII / 22nd Pursuit Squadron /…
Photograph of Ruth Law piloting her Curtiss Model D Headless aircraft, Hammondsport, New York, circa 1910s.
Inscription: "Ruth Law, Hammondsport, N.Y., (Pioneer Days)."
Caption on envelope: "Ruth Law in flight."