The Third Model Dragoons were the last of the massive Colt percussion revolvers that began with the famous Colt Walker and were replaced by the more streamlined Model 1860 Army that was the primary service revolver of the Union Army during the Civil War. Many Colt Dragoons saw significant use during the Civil War by both sides. The U.S. Dragoons were serving in the West at the outbreak of the war and fought in both the eastern and western theaters of the Civil War. They are the forerunners of many famous American military cavalry units still serving our country today. Manufactured in 1856. The top of the barrel flat is marked "-ADDRESS SAML COLT NEW-YORK CITY-" and the left side of the frame is marked "COLTS/PATENT". It has all matching serial numbers and standard blade and notch sights. The cylinder has the Ranger and Indian battle scene and is marked "MODEL U.S.M.R./COLT'S PATENT." There are small inspection marks on several components and oval "JH" and "R.H.K.W." cartouches on the sides of the grip. The frame is not cut for a shoulder stock.

Very good plus with mostly a brown patina overall, some light spotting, distinct markings, and mild overall wear. The cylinder scene is light but is clearly legible. The grip is fine and has a crisp cartouche on the left, lightly legible cartouche on the right, mild edge wear, light scratches, and some dings. Mechanically fine. This is an attractive example of one of the key models in any antique Colt revolver collection that shows signs of real antebellum and Civil War era use as well as proper care over more than a century and a half.