Manufactured in the mid-1870s from a mixture of remaining percussion parts on hand and newly fabricated components, and the method of factory alteration was the same as in the Richards-Mason Model 1860 Army. These revolvers are found in the 1-3800 serial number range with this example having an early three digit serial number, "372." It has the one-line New York barrel address, "COLTS/PATENT" (factory double stamped) on the frame, naval cylinder scene and "36 CAL" on the trigger guard shoulder. Matching numbers are found on the barrel, frame, trigger guard, back strap and cylinder.

Fine. The barrel and cylinder retain 50% original polished blue finish with the balance a smooth brown patina. 60% original case colors remain on the hammer and frame. Areas of original silver plating remain around the trigger and on top of the back strap, otherwise the exposed brass has an attractive appearance. The grips are excellent showing some minor handling evidence, some high edge wear and retaining most of the original varnish. Mechanically excellent. Do not miss the chance to acquire an attractive early Model 1851 Richards-Mason Cartridge Conversion Revolver that will make a great addition to your growing Colt antique collection.