[Biplane in flight]

Photograph of an unidentified biplane (fuselage number 29) in flight near a pylon at the 1923 Pulitzer Air Race in St. Louis, Missouri, October 1923.

Inscription: "A-11181 A.S."

Inscription on verso: "1923 St. Louis."

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."