[SPAD XIII aircraft of 91st Aero Squadron]

Photograph of a SPAD XIII aircraft (fuselage number 18) of the 91st Aero Squadron, circa 1917-1919. The squadron's "knight and devil" emblem is visible on the fuselage. Three German crosses are painted on the knight's shield, signifying three aerial victories.

Inscription on album page: "91st Aero - 3 Boche."

Part of Album Three from the Nancy Harkness Collection of World War I Photograph Albums, circa 1914-1919.

Materials were digitized as part of a Digitizing Hidden Collections grant from the Council on Library and Information Resources (CLIR). Digital files are made available under Creative Commons license CC BY-NC-ND. For commercial use, please inquire via our image/research request form.