Manufactured in 1858. The cylinder has the rectangular stops found only on Third Model Dragoons. The barrel has a nickel silver front sight blade and a two-leaf folding rear sight mounted in a dovetail. The frame has slots cut in the recoil shields and two additional elongated cap-screws in the frame to engage the stock yoke. The barrel is numbered to a different gun and has the one-line New York address partially obscured by the rear sight. "COLTS/PATENT/U.S." is marked on the left side of the frame. The cylinder has the Ranger and Indian fight scene. "1" and "M" are stamped on the left side of the trigger guard. The full serial number is marked on the frame, trigger guard, back strap, and cylinder. The partial serial number "6648" is marked on the loading gate, cylinder pin and wedge. The stock has an iron yoke which slips over the frame screws and engages the slots in the recoil shields. A clamp on the bottom of the yoke engages a slot in the revolver back strap and is tightened by a round knurled nut on the top of the yoke. The stock has an iron sling ring on the lower tang. Stocked U.S. Contract Third Dragoon Revolvers were issued in pairs and the heel of the iron buttplate is stamped with the serial numbers "16501" and "16502."

Good with period replacement barrel. The barrel retains traces of refinished blue finish in the protected areas, otherwise a smooth brown patina. The remaining surfaces have a mottled brown-gray patina. There is some minor pitting. Traces of the cylinder scene remains. The grip is very good with a small missing sliver near the bottom (left side), high edge wear and some minor dings and scratches. Mechanically fine. The stock very is good with refinished wood showing some minor dings and scratches and the iron hardware having a smooth brown-gray patina with minor pitting. The yoke is loose.