WWII U.S. Navy 40 mm Bofors Round – 1942-43 – Inert Brass & Steel Shell

Authentic World War II 40 mm Mk I Bofors shell, consisting of a brass case (1943) made by Cartridge Case Co. and a steel projectile (dated Oct 9 1942) with dual copper driving bands.

This shell type was used in the U.S. Navy’s 40 mm Bofors anti-aircraft guns, mounted on destroyers, cruisers, and carriers throughout WWII. These guns became iconic for their rate of fire and reliability against enemy aircraft.

Markings:
• Case: “40 MM MK I LOT 37-61 MFG BY CARTRIDGE CASE CO.”
• Projectile: “K 2-10 9-42” and “LOT 11 1942 STEEL”

Specifications:
• Height: ~13 in (33 cm)
• Material: Brass & Steel
• Condition: Excellent polished display piece, completely inert

⚠️ Inert – contains no explosive or propellant. Safe for display and handling.

A stunning piece of U.S. Navy WWII ordnance history — perfect for militaria collectors or naval display collections.