A rare Richard Conversion Colt 1860 model Army revolver

dating: Third quarter of the 19th Century provenance: USA, 44 cal, Colt, center fire, 8” barrel. Serial n° 1964xx. Transition Model (Second Model or Type II) between Richard and Richards-Mason conversion. The barrel and extractor of Richard type, conversion ring and hammer of Richards-Mason type. 1871 and 1872 patents, marked on the left side of the frame. Keeping 50% of its original nickel finishing, very fine, varnished wooden grips, very fine and clear naval engagement scene. Excellent bore. In a wooden, irrelevant case. Only 9.000 samples produced. See 'Flayderman's Guide': 5B-119. length 36.5 cm.