The officer's Type M1940 service uniform was adopted by the United States Army during the service's rapid expansion prior America's entry into World War II. Popularly known as the "pinks and greens" this uniform remained standard issue until the passage of the National Security Act of 1947 that created the Department of Defense. The uniform continued to be worn in the aftermath of the Act but officially became obsolete after July 1948.
This service coat was worn by the donor, 1st Lieutenant John Nagay. Nagay served as a B-24 Bombardier and Navigator in the 15th Air Force from September 1943 to March 1944 and was wounded by Flak over the Anzio beachhead in February 1944.
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.