Fitted with the turret of the M8 self-propelled gun, with it's 75mm short-barrel howitzer, and carrying sandbags for additional protection along the tops of their hulls, these LVT(A)4 Amtracs are heading for the assault beaches on Okinawa. (scanned by HOS Bandit)

LVT Amtracs at Okinawa

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."

Heavy tank

An M4A3E8 76mm armed Sherman in action somewhere in Germany.  Exact date and location unknown...