37mm Anti-Tank Gun M3A1
This 37mm Anti-Tank Gun M3A1 was photographed at the Military Vehicle Technology Foundation in Portola Valley, California in March 2003.
CARRIAGE M1 FOR 155MM GUN M1A1/M59 LONG TOM AND 8-INCH HOWITZER M1 ALLIED PHOTO GALLERY 57MM ANTI-TANK GUN M1