The Smith & Wesson Model 3 was a centerfire single action revolver produced between 1870 and the late 1880's. Also referred as the Smith & Wesson Russian Model and the Schofield Model Revolver. This particular model as seen some action in the Old West and was used by outlaws like Jesse James and Billy the Kid.
Smith & Wesson Model 3 Schofield Model
Pictures courtesy of AdamsGuns.com