[Engineering Division NBL-1 Barling Bomber]

Photograph of the Engineering Division NBL-1 Barling Bomber aircraft on display at the 1923 Pulitzer Air Race in St. Louis, Missouri, October 1923.

Inscription: "11131 A.S."

Inscription on verso: Eng. Div/Whitteman-Lewis 'Barling' NBL-1."

Stamped on verso: "Official photograph. Property of U.S. Army Air Service. Reproduction of this photograph is prohibited except when and as authorized in writing by the Chief of Air Service, Washington, D.C."