Description

Used in US M3 37mm anti-tank gun. Brass  casing is 27 x 220R, marked 37mm M16 GMS 1942 with crossed cannons ordnance mark. A lot number is stenciled in ink. The rimmed case is for individual single shot firing and extraction. Projectle is armour piercing shot, marked 37mm M51B1 and dated 1944.