Manufactured in 1877, the standard two-line address on top of the barrel, desirable "COLT NEW 41" etched panel on the left. The patent date marking is on the bottom of the barrel. The left of the frame is marked "41CAL C". The full serial number is on the left of the grip frame, bottom of the barrel, and the partial serial number "547" is on the rear face of the cylinder. It is fitted with smooth antique ivory grips. The included factory letter confirms the current configuration, grips not listed, as well as the desirable 4 inch barrel and shipment to Hodgkins & Haigh in New York on 16 November 1877 in a shipment of 12 guns.