91st Aero Squadron
November 13, 1918
After reconnaissance missions on the Western Front, the Air Service hurriedly processed film for military intelligence. For some special occasions, the laboratories were also used to produce menus in the form of photographs, such as this example marking the one-year anniversary of the 91st Aero Squadron in France. The unit had experienced its final casualty three days earlier on November 10, 1918, the day before the armistice was signed.