Browse Items (31 total)

Poster of servicemen firing a machine gun loaded with war savings stamps as ammunition, circa 1917-1918. Art by Casper Emerson Jr., issued by the U.S. Treasury Department. Text: "Help them / Keep your War Savings pledge."

Photograph of two National Revolutionary Army servicemen with a mounted machine gun behind a sandbag emplacement, China, circa 1932-1933. Part of a photograph album related to Julius A. Barr's personal life and flying career in the United States and…

Photograph of a National Revolutionary Army serviceman with a mounted machine gun, China, circa 1932-1933. Part of a photograph album related to Julius A. Barr's personal life and flying career in the United States and China, circa 1932-1933.

Photograph of servicemen during machine gun training, circa 1926-1927.Part of a photograph album related to Julius A. Barr's flight training with the U.S. Army Air Corps at Brooks Field and Kelly Field, Texas, circa 1926-1927.

Photograph of a serviceman during machine gun training, circa 1926-1927.Stamped on verso: "Finished by H. G. Rees Opt. Co. 407 E Houston St. San Antonio, Tex."Part of a photograph album related to Julius A. Barr's flight training with the U.S. Army…

Photograph of servicemen during machine gun training, circa 1927.Stamped on verso: "This is a Genuine Border Fox Tone Picture. Made by Fox Co., San Antonio, Texas. Copyrighted 1927 by Carl D. Newton."Part of a photograph album related to Julius A.…

Photograph of an unidentified serviceman during machine gun practice, circa 1918.Inscription on verso: "Machine gun practice in sighting."Part of a photograph album related to Lionel Cherry Gilmour's service with the Royal Air Force during World War…

Photograph of a group of Chinese soldiers inspecting a machine gun, China, circa 1940s.Stamped on verso: "Army Air Force Photo. 10th Combat Camera Unit."

Photograph of a device used to test synchronization between a machine gun and propeller, circa 1918.

Photograph of a United States Army crew chief testing an M60 door gun in a Bell UH-1H Iroquois (Huey) helicopter, Vietnam, circa 1970-1971. The photo was taken while en route to an air assault.Caption from donor: "Crewchief checking and testing the…