A U.S. Army Air Corps twin-engine aircraft photographed on an airfield ramp on November 24, 1939. The aircraft's glazed nose, twin radial engines, and pre-war star insignia are typical of American bomber and reconnaissance aircraft fielded in the years immediately before World War II, such as the Douglas B-18 Bolo. Photographs like this were part of routine Air Corps documentation of aircraft entering or continuing in service during the pre-war expansion of American airpower. Project: 218215