Armament Research Services (ARES) is a specialist technical intelligence consultancy, offering expertise and analysis to a range of government and non-government entities in the arms and munitions field. For detailed photos of the guns in this video, don’t miss the ARES companion blog post!
George Fosbery V.C. is best known in firearms circles for the Webley-Fosbery automatic revolver, but he experimented with several other firearms designs as well. This particular one never made it into commercial production, but it uses a bolt design very reminiscent of what Johnson and Stoner would use 50+ years later, with six independent locking lugs around the circumference of the bolt head.
This firearm actually began as a pump action rifle before being converted into a shotgun (using a Winchester barrel), which makes it all the more interesting. It was originally made circa 1891, and later converted from a rifle into a shotgun (hence the 1909 model barrel).