The Baldwin Locomotive Works was an American manufacturer of railroad locomotives from 1825 to 1956.
The following is a (partial) listing of vehicle model numbers or M-numbers assigned by the U.S. Army.
The M3 Lee, officially Medium Tank, M3, was an American medium tank used during World War II.
A self-propelled gun (SPG) is a form of self-propelled artillery, and in modern use is usually used to refer to artillery pieces such as howitzers.
A tank destroyer or tank hunter is a type of armoured fighting vehicle, armed with a direct-fire artillery gun or missile launcher, with limited operational capacities and designed specifically to engage enemy tanks.
This article on military tanks deals with the history and development of American tanks: their origin during World War I; the interwar period; World War II; the Cold War; and the modern era.
World War II (often abbreviated to WWII or WW2), also known as the Second World War, was a global war that lasted from 1939 to 1945, although conflicts reflecting the ideological clash between what would become the Allied and Axis blocs began earlier.
The 3-inch M1918 gun was a United States 3-inch anti-aircraft gun that entered service in 1918 and served until it was finally superseded by the 3" M3 gun in 1930.