37mm British WWI shell casing COW anti-aircraft gun 37x190mm inert ammo
See more information below...
Inert 37mm shell casing, used in the COW anti-aircraft gun by Britain during WWI. This 37x190mm casing is made of brass and is in good condition. The COW 37mm gun was a British automatic cannon that was developed during WWI as a large-caliber aircraft weapon.
