This late production Henry rifle was manufactured by the New Haven Arms Company in 1866. The rifle has the features typically found on late production Henry rifles which include: (1) square back, nickel-silver, front sight blade, (2) folding leaf rear sight with 900 yard center notch and elevator bar stop screw, (3) large diameter magazine follower, (4) beveled follower cut in the receiver, (5) second style receiver without the alternative rear sight dove-tail, (6) brass buttplate with sharply pointed heel, and (7) larger, second style, New Haven Arms barrel legend with all serif letters. The rifle has a sling swivel on the left side of the stock and screw-mounted loop for a sling hook on the left side of the barrel. The sling swivel and loop were standard features on later production Henry rifles. The buttplate has a hinged brass trap door and the butt trap contains the four piece, jointed, steel cleaning rod with steel eyelet and brass tip furnished with Henry rifles after serial number 4000. The rifle has the distinctive brass "gun-metal" receiver and buttplate with blued barrel and integral 15-shot magazine. The bolt and screws are blued. The rear sight, hammer, trigger and sling swivel are color casehardened. The stock is oil-finished, straight grain, American walnut. The top of the barrel is roll-stamped with the legend: "HENRY'S PATENT. OCT. 16. 1860/MANUFACT'D BY THE NEWHAVEN ARMS. CO." in two lines ahead of the rear sight. The second line of the legend appears to have been factory rolled twice (legitimate error) and very faint outlines of the marking are visible below it. The roll marking legend error was performed by New Haven Arms and is interesting to say the least! The serial number is stamped: (1) on the top barrel behind the rear sight, (2) on the left side of the lower receiver rail underneath the stock, (3) in the upper stock inlet, and (4) on the inside of the buttplate below the lower screw hole. All of the visible serial numbers match. The buttplate and tang screws are the later cap head style and are correctly not serial numbered. Oliver Winchester's "W" inspection mark is stamped on the lower receiver tang behind the lever latch. The Henry lever action rifle was the most advanced firearm manufactured during the Civil War. Most of the Civil War production Henry rifles were privately purchased by individual Federal soldiers who appreciated the firepower of the 15-shot lever action magazine rifle. Following the Civil War, Henry rifles were popular on the frontier. Provenance: The Mac McCroskie Collection; The Joe Marlin Hilliard Collection