This Henry lever action rifle was manufactured in 1866. This rifle has the distinctive Henry brass receiver and buttplate with blued 24 inch octagon barrel and integral 15-shot magazine. The hammer, trigger and lever are casehardened. The stock is straight grain American walnut. The rifle has the late production features which include: (1) straight back, nickel silver, front sight blade, (2) large brass magazine follower, (3) beveled magazine follower cut in the receiver, (4) second style buttplate with sharply pointed heel and (5) second style receiver without a rear sight dovetail. The rifle has an early pattern folding leaf rear sight with rounded leaf, "1000" stamped below the center notch and "100" marking on the leaf base. The left side of the stock is fitted with a sling swivel, and the left side of the barrel has a screw-fastened loop for a sling hook. The sling swivel and loop were standard features on late production Henry rifles. The buttplate has a hinged brass trap door, and the butt trap contains the four-piece jointed steel cleaning rod with brass tip supplied with late production Henry rifles. The top of the barrel is roll-stamped with the second style New Haven Arms Co. legend introduced about serial number 4000. This legend: "HENRY'S PATENT. OCT. 16. 1860/MANUFACT'D BY THE NEW HAVEN ARMS CO. NEWHAVEN. CT." is located on the top barrel flat ahead of the rear sight and is larger than the legend found on early Henry rifle barrel and has all serif letters. The top of the barrel is stamped with the serial number "11826" between the rear sight and the receiver. "11826" was also stamped on the inside of the buttplate, on the left side of the lower tang and on the bottom of the upper stock inlet. All of the visible serial numbers match. Buttplate and stock screws on late production Henry rifles are not serial numbered. The small "H" inspection mark used by B. Tyler Henry is stamped on the lower tang behind the lever latch.