This Colt Thuer Conversion Model 1860 Army revolver was manufactured 1869-72. The revolver has a high polish blue finish on the barrel, cylinder and back strap, casehardened loading lever, frame and hammer and silver-plated brass trigger guard. The revolver has a one-piece grip. The top of the barrel is roll-stamped: "-ADDRESS COL. SAML COLT NEW-YORK U.S. AMERICA-" in one line. "COLTS/PATENT" is stamped on the left side of the frame. The cylinder is roll-engraved with the Texas navy battle scene and "COLTS PATENT NO". The full serial number is stamped on the bottom of the barrel lug, frame, trigger guard and back strap. The replacement cylinder is numbered "4646". The Thuer conversion ring has a script "E" that denotes the eject position. The right side of the barrel lug is machined to permit front loading of the cartridge and the loading lever rammer is threaded on the internal face, both Thuer features. The cylinder has been modified to accommodate the conversion ring. The conversion ring has the distinctive knurled turning knob, rebounding firing pin, and ejection mechanism. The Thuer conversion were the first Colt revolvers to utilize a metallic cartridge and are scarce and historically significant firearms.

Fine. The revolver retains 50% blue and casehardened finish. The sides of the barrel lug and bottom of the barrel retain most of the high polish blue finish; the top of the barrel has a plum patina. Nearly all of the roll-engraved naval scene is present on the cylinder and the protected areas of the cylinder retain significant amounts of the blue finish. The upper portion of the back strap and the butt have most of the blue finish; the contact points on the middle of the back strap have a silver-gray patina. The loading lever, frame and hammer have 70% of the casehardened finish with strong case colors. Traces of the silver-plated finish are present on the trigger guard; the balance of the brass trigger guard has a mellow, aged, patina. The grip has an attractive aged yellow tint remains in very fine condition overall with wear limited to some very minor age cracks on the butt. All of the markings and serial numbers are sharp. The action is tight and functions fine. This is example of a scarce and desirable Colt Thuer Conversion Model 1860 Army revolver.