M3 Half-Track with a limited traverse 105mm M2A1 Howitzer. The location of the gun mount forced the relocation of the vehicles gas tanks to the rear of the vehicle. (scanned by HOS Bandit)

M3 Half-Track 105mm Howitzer

Crewmen of a US Army 57mm Anti-Tank gun M1, have taken up position in the center of a badly damaged French Town in September 1944. This American built copy of the British designed six-pdr anti-tank gun fired a 7.23-pd. APC projectile at a muzzle velocity of 2800 ft. per second. The barrel of the American weapon was 16 inches longer than that of the British version of the gun, giving it a slightly higher muzzle velocity. (scanned by HOS Bandit)

57mm Anti-Tank Gun

Original caption: "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 Heavy Tank trials, December 8, 1941."