Lot - A 3 MK7 50cal brass shell casing.

Heavy Ordnance Catalog

Original WWII Era U.S. Navy Gun 3 Inch / 50 Caliber Dual Purpose Naval – International Military Antiques

1942 Wwii Brass Shell Casing [empty]

WW2 German, Soviet, Allied militaria, uniforms, awards, weapons history. War relics forum

Original WWII Era U.S. Navy Gun 3 Inch / 50 Caliber Dual Purpose Naval – International Military Antiques

What is the most powerful gun that a person can buy legally in the U.S.? - Quora

A 3'' MK7 50 cal sharp shell in - Cheffins Fine Art

Mk7 MOD-2 3inch Artillery round - General Ammunition Discussion - International Ammunition Association Web Forum

Item Relisted! FS WW2 3/ 50 Caliber MK7 Dated 7-1945 BRASS SHELL CASING

3-inch/50-caliber gun - Wikipedia