This is an unmarked large frame Webley-Bentley D.A. 45 caliber percussion revolver. It is a 5 shot with a 6” barrel and there are only British proof marks on the cylinder and frame. The mechanical function is very good, crisp and tight and this is a D.A. only revolver. The bore is very good bright and shiny with strong rifling. There is over 80% original finish, of which 70% is blue and the balance a plum color. There is no serial number on it. Most of the Bentley revolvers that I have encountered were medium frame 40 caliber. This is the big one.