British WWII Vickers Machine Gun Cross Bolt Adapter Spanish American War Official documentation tells us that

Official documentation tells us that approximately 40

so we have had these identically duplicated

creating the Mark I*

Also the stamping and heat treatment process used during original production can lead to rippling of the steel

British WWII Vickers Machine Gun Cross Bolt Adapter Spanish American War Official documentation tells us thatNew Made Item: Experimentally used with the Water Cooled Vickers gun with simple cross bolt adopter that fitted into the forward Vickers tripod mounting hole. Replaced with its adoption of the folding Sangster mount. The Vickers machine gun or Vickers gun is a name primarily used to refer to the water cooled . 303 British (7. 7 mm) machine gun produced by Vickers Limited, originally for the British Army. The machine gun typically required a six to