Imperial German, Pre WW1, Kaiserliche Marine (Navy) C/97.98 37mm Maxim Automatic Cannon round (Pom Pom Round), Dated 1904, Patronenfabrik Karlsruhe, Inert
British, WW2, Naval 2 Pounder Pom Pom Round, 2PR No1 Mk II K, Made by RLB – Royal Laboratories, Dated 1940, Inert
British, WW2, Navy 2 Pounder Pom Pom Brass Shell Case, Dated 1942, Made by K (Kynoch Factories, Imperial Chemical Industries Ltd., Birmingham)