This wonderful western Sharps is serial # 162392,.40 2 5/8 cal. with 30’Oct.Bbl. The included factory letter lists this rifle in the factory records as invoiced March 17,1879  t0 N.R. Davis & Co. of Cheyenne ,Wyoming.  It is noted as a Model 1874  Sporting Octagon Rifle. The caliber is .40 using the 2 5/8″ case. The exact weight is 10 lbs.10 oz. and the net price was $26.  N.R. Davis was a major cattlemen and was president of  Wyoming Stock Growers Assoc. He formed  N.R Davis & Co. in 1878 and had multiple cattle ranches as well as mining interests. This rifle has a German silver front sight , notch and ladder rear sight ,the boxed “Old Reliable ” marking and Bridgeport address ahead of the rear sight, Cal.40 2 5/8  ahead of the breech on the left side. Adjustable double set triggers, plain stock and forearm with a checkered butt plate.   A.A. ONG is stamped on the left side of frame and wrist. This appears to be for Adalaska A. Ong (1862-1939) .Ong was a railroad engineer born in Illinois who lived in Missouri and then Iowa before homesteading in Wyoming in 1921 on  Little Lightning Creek near Lance Creek and had lands in the oil fields. The rifle is in pretty good shape for a  Western Frontier used rifle. The barrel is mostly grey and brown patina . The wood is good and has a minor wrist repair, a hole from a screw used to tune the trigger pull before the addition of the double set triggers .  Numerous chips along the edge of the forearm and moderate overall wear consistent with use of on the Wyoming frontier. The set trigger needs some adjustment but the rifle is otherwise mechanically fine.