3-inch gun M1918
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The 3-inch gun M1918 was a United States 3-inch anti-aircraft gun that entered service in 1918 and served until it was largely superseded by the 3-inch anti-aircraft gun M3 in 1930, though the M1918 r
3-inch M1918 on towed trailer mount
3-inch M1917
Gun crew man their 3-inch M3 at New Fighter Strip, Dobodura, New Guinea
M10 tank destroyer, sporting the 3-inch M7
M6 heavy tank
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The Heavy Tank M6 was an American heavy tank designed during World War II. The tank was produced in small numbers and never saw combat.
M6 prototype
T1 heavy tank prototype
Front view of M6, with several early M3 light tanks in the background
Side view