Manufactured in 1861, the second year of production. The barrel is marked with the one-line New York address and has a nickel silver blade front sight, and the frame is cut for a shoulder stock and marked "COLTS/PATENT" on the left. The cylinder has the roll engraved Naval Battle of Campeche scene. The matching serial number is visible on the barrel, frame, brass trigger guard, and iron back strap. There are sub-inspection marks on various components and a cartouche the left side of the grip. Includes a black leather flap holster.

Fine with 60% plus vibrant original case colors, attractive aged patina on the brass, 30% original blue finish in the protected areas, holster wear and mottled gray and brown patina on the balance, mild pitting, and general mild wear. The grip is also fine and has legible cartouches, small chips at the toe, and minor wear. Mechanically fine. The holster is good with moderate rub wear, open toe, some absent stitching, and crackling. Overall, a very attractive example of the main Union revolver.