These revolvers were manufactured around the mid-1870s as cartridge revolvers using percussion parts on hand and newly fabricated cartridge revolver components. They are generally numbered in the 100-3300 range like this revolver. The barrel has a blade front sight, an ejector fitted on the right, a re-contoured and filled lug, and "-ADDRESS COL SAML COLT NEW-YORK U.S. AMERICA-" marked on top. The left side of the frame is marked with the two-line "-PAT. JULY.25.1871.-/-PAT.JULY. 2. 1872-" patent markings, and the left side of the trigger guard is stamped with "38 CAL." The full serial number is located on the bottom of the barrel lug, the frame, trigger guard, and back strap, and a "1" is also marked by the serial number on the frame, trigger guard, and back strap. The cylinder has the partial serial number "466." The loading gate is marked "3420." The hammer has a firing pin for rimfire ammunition pinned to the left side.

Excellent. 95% plus of the original nickel plating remains, and the loss is almost exclusively on the trigger guard. There are some isolated spots of minor oxidation and general light scratches. The markings and cylinder scene are distinct. The wedge spring is chipped. The trigger and hammer retain 95% plus of their respective blue and casehardened finishes. The grip is also excellent and retains the vast majority of the original varnish and has wear mostly limited to the lower edges and some light scuffs. Mechanically excellent. This is an outstanding Richards-Mason revolver. These revolvers neatly bridge Colt's origins in the percussion era of the mid 19th century and the era of the Colt Single Action Army in the late 19th century.