Manufactured around 1909-1912, the Union Automatic Revolver bears a strong mechanical resemblance to the Webley-Fosbury Automatic, to the point where the base principles are virtually identical: a top-break revolver frame is mounted in a spring-loaded housing and grip assembly, and on discharge the frame is driven backwards by recoil, revolving the cylinder and re-cocking the hammer. The main deviation is that the hammer is mounted to the housing on the Union, and no manual safety is included. Fixed sights, with a repeating "138" on several components and the address on the right side of the housing. Fitted with a pair of "U.F.A./American Eagle" grips.