The Third Model Dragoon revolvers are one of the iconic firearms of the Old West and were the last of the large .44 caliber Colt "revolving holster pistols" that began with the famous Colt Walker in 1847. This revolver was manufactured in 1859 under contract with the U.S. government. Most of these revolvers saw hard use on the frontier with the 1st and 2nd Dragoons and U.S. Regiment of Mounted Riflemen during the plethora of conflicts with Native Americans in the antebellum West and were subsequently used by both sides during the Civil War. The revolver has the round brass trigger guard and rectangular cylinder stops found on Third Model Dragoons. The top flat of the barrel is marked "-ADDRESS SAML COLT NEW YORK CITY-" and has a German silver blade front sight. The left side of the frame is marked "COLT'S/PATENT/U.S." The cylinder has the Indian fight scene and the desirable "U.S. DRAGOONS" marking. Matching serial numbers are found on the loading lever, cylinder, arbor pin, wedge, barrel, frame, trigger guard, and back strap. The grip has an "ADK" cartouche on the left and "WAT" cartouche on the right, and small inspection marks are found on various parts.