Original British WWII Polston Oerlikon 20mm Cannon Barrel Hand Select:Yes - A wire loop on

- A wire loop on lid edge is engaged by a latch panel to clamp the lid down

303 Caliber Martinis by cutting down and bushing the socket

Nepal have baffled collectors

The Mark V was used until the late-1980s at which point the British replaced all steel helmets with the Mark 6

but this was equally unsuccessful

Original British WWII Polston Oerlikon 20mm Cannon Barrel Hand Select:Yes - A wire loop onOriginal Item: 20mm Polston Oerlikon Barrel cal 20x 110RB. Used. Approximately 58 inches long. The Oerlikon 20 mm cannon is a series of autocannons, based on an original designed by Reinhold Becker of Germany, very early in World War I, and widely produced by Oerlikon Contraves and others. Various models of Oerlikon cannon were used during World War II, and they are still in use today During World War I, the German Reinhold Becker developed a 20 mm