This is a fine example of a Colt Fourth Model 1851 Navy revolver that was manufactured in 1864.This commercial production revolver has a high polish blue finish on the barrel, casehardened loading lever, fame and hammer and silver-plated brass trigger guard and backstrap. The one-piece walnut grip has a high polish varnish, 'piano' finish. The pistol has the large rounded trigger guard, capping channel in the recoil shield and thick loading lever catch that are characteristic of late Fourth Model 1851 Navy revolvers. The top of the barrel is roll-stamped: "-ADDRESS COL. SAML. COLT NEW-YORK U.S. AMERICA-" in one line. The left side of the frame is stamped: "COLTS/PATENT". "36 Cal" is stamped on the left shoulder of the trigger guard. The cylinder is roll-engraved with the Texas Navy battle scene and "COLT'S PATENT". The full serial number, "176839" is stamped on the bottom of the barrel lug, frame, trigger guard and backstrap. The partial serial number, "6839", is stamped on the cylinder. All of the visible serial numbers match. The revolver is complete with an American style mahogany case with blue velvet lining and five compartments. The relined case contains: (1) a japanned tin percussion tin, (2) American Flask & Cap Co., "Coat of Arms" powder flask with fixed charger, (3) two reproduction packages of six Hazards "Cumbustive Envelope" cartridges for Colt Revolving Belt Pistol, (4) blued, iron, two cavity bullet mold for round balls and conical bullets marked, "COLT'S/PATENT" on the spruce cutter and "36B" on the right block, (5) Austrian Kriegsmarine capping tool and (6) cast, conical, bullets.