The accompanying factory letter list this carbine as having been received in the warehouse on August 27, 1883 and shipped on April 19, 1886. The barrel is stamped with the two-line Winchester address/King's patent dates legend ahead of the rear sight. The serial number is in script on the lower tang behind the lever catch. It has a set of carbine sights, a bolt that retains its original rimfire firing pin, a saddle ring stud with ring mounted on the left side of the brass receiver and a carbine stock with trapdoor casehardened iron buttplate. A three piece cleaning rod is included. Model 1866s have always been extremely popular with collectors with most having seen heavy use on the Western frontier due to their rapid fire nature and improved Henry rifle design.