Winchester Model 1866 Carbine manufactured in 1866. The carbine has very desirable early features that include: (1) Henry and King patent dates on the barrel, (2) flat loading port cover, (3) two screw upper tang and (4) Henry style rear receiver profile. The barrel has the first style barrel band with integral front sight blade and early style, hinged leaf, rear sight. The magazine has the early, threaded cap. The left side of the receiver has a staple mounted saddle ring. The hammer has coarse, borderless, knurling on the spur and lacks a half-cock notch. The lever loop is the early small size. The carbine has a Henry style, crescent brass buttplate with pointed spur and brass trap door. The top of the barrel is roll-stamped with the first style legend: "HENRY'S PATENT-OCT. 16. 1860/KING'S PATENT-MARCH 29. 1866." in two lines between the lower barrel band and the rear sight. The stock was not removed to examine the serial number stamped on the left side of the lower tang but the inside of the buttplate is stamped with the rifle serial number "12979". The butt trap contains a three-piece, jointed cleaning rod with brass tip. The stock and forearm are straight grain American walnut. The barrel, magazine, barrel bands, and loading gate are blued. The hammer, lever and trigger are casehardened.