I photographed these British Vickers 3.7cm Quick Fire 1-pounder “Pom Pom” Anti-aircraft Gun examples in Brussels and the IWM Duxford.
The British Vickers 3.7cm Quick Fire 1-pounder “Pom-Pom” and the German 37mm-class Krupp/Maxim-derived Pom Pom guns are closely associated and share historical roots, though they are technically distinct designs