120 mm gun M1
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The 120 mm gun M1 was the United States Army's standard super-heavy anti-aircraft gun during World War II and the Korean War, complementing the smaller and more mobile M2 90 mm gun in service. Its max
120 mm M1 anti-aircraft gun at Battleship Memorial Park
The 120 mm gun T53 intended for the T34 heavy tank.
M103 heavy tank
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The M103 heavy tank was a heavy tank that served in the United States Army and the United States Marine Corps during the Cold War. Introduced in 1957, it served until 1974, by which time evolution of
120 mm gun M1
…to be mobile. It became obsolete with the development of anti-aircraft missiles and was phased out after 1954. However, a derivative mounted in the M103 tank served in that capacity until 1974. The United States Army first worked on a 120 mm gun after the end of World War I, with a prototype being presented…
M103A2 at the Bovington Tank Museum
T43 pilot #1 at the U.S. Army Armor & Cavalry Collection at Fort Benning
A Marine M103 on American-Spanish naval exercises, October 1964
US Marine Corps 1st Tank Battalion staff sergeant holding an M356 HE-T high-explosive round in 1959