Production T23 with cast turret for 76mm M1A1 gun, electrical transmission, and vertical volute spring suspension. The T23 turret was designed to be interchangeable with the turret ring of the M4 Sherman.(rudeerude)

T23 with cast turret for 76mm M1A1 gun

U.S. Tanks & Scout Cars in 1940 Manuvers

The first "Super Pershing", a T26E1 mounted with the L73 90mm T15 gun. This photograph was taken after the tank arrived in Europe, and maintenance units in the Third Armor Division added extra armor to the front of the tank. The Pershing's gun mantlet was a known weak point in the armor, and so an 80mm piece from a Panther tank was added. Note the coil springs on top of the gun mount, which were required to balance the extra weight of the long gun barrel.(rudeerude)