A pair of early 20th century brass and copper heavy gun shells, deactivated. 17cm

A pair of early 20th century brass and copper heavy gun shells, deactivated. 17cm in The 3 Day Antique & Mid C (27 Jun 23) by Laganside Auctions

In WWI & WWII, the 37mm was popular and the caliber was used by

Oman Virtual Museum describing antique Omani matchlock gun

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Us Inert Artillery Ammunition & Projectibles From

Heavy Ordnance Catalog

Three Day Auction of Fine Paintings with Northern Art, Sporting

The Victory lamp and ashtray, a review of factory production shell

Large Rounds

In WWI & WWII, the 37mm was popular and the caliber was used by

Heavy Ordnance Catalog

Oman Virtual Museum describing antique Omani matchlock gun

By the creator of Tank Encyclopedia

Heavy Ordnance Catalog