This is an exceptional original example of a Colt Model 1849 Pocket revolver with London address that was manufactured circa 1856. This Fifth Model revolver has the slightly larger grips, steel back strap and oval trigger guard. The revolver has a four-inch octagon barrel with loading lever and five-shot .31 caliber cylinder. The cylinder is roll-engraved with Stagecoach Holdup scene and "COLTS PATENT" markings. The barrel and cylinder have a high polish blue finish, the loading lever, hammer and frame are color casehardened and the trigger guard and back strap are silver plated. The one-piece walnut grip has a high polish piano finish. The top of the barrel is roll-stamped "{ADDRESS COL: COLT/LONDON}". "COLTS/PATENT" is stamped in two lines on the left side of the frame. London "Crown/V" and "Crown/GP" proof and inspection marks are stamped on the left side of the barrel lug in front of the wedge and above each chamber on the cylinder behind the stops. The full serial number "8554" is stamped on the loading lever, bottom of the barrel lug, frame, trigger guard and back strap and on the side of the cylinder. Colt's London Armory manufactured approximately 11,000 Model 1849 Pocket revolvers between 1853 and 1856.