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 several Curtiss JN-4 Jenny aircraft (visible fuselage numbers 3578 and 2859) at Souther Field, Georgia, circa 1910s-1930s. Caption on envelope: "Curtiss JN-4s in a line / Souther Field / 80."
Photograph of a Curtiss 18-T Wasp aircraft (tail number A3325), circa 1910s-1930s. Caption on envelope: "Curtiss 18T-1 / A3325 / Swept-wing prototype / 101."