M4A3E2 Sherman "Jumbo" - assault tank variant, based upon a standard M4A3(75)W hull, with additional 38 mm (1.5 in) plate welded to the glacis, and sponson sides. T23-style turret & gun mantlet with additional armor., 75 mm (infantry support) / 76 mm main gun. 254 were built (May ~ July 1944), and arrived in Europe in the fall of 1944.