Manufactured in 1868 as a second model with the single upper tang screw. The rifle has the highly desirable Henry patent barrel address ("HENRY'S PATENT-OCT. 16. 1860/KINGS-PATENT-MARCH 29, 1866") stamped ahead of the rear sight on the top flat. The barrel is fitted with a dovetail blade front sight and a folding ladder rear sight (elevation bar is absent). The bolt remains in its original .44 rimfire configuration. The serial number is correctly stamped on the left side of the lower tang. Sling swivels are mounted on the underside of the buttstock and forend cap. The rifle has a blued octagon barrel, magazine and loading gate and distinctive brass receiver, forearm cap and crescent buttplate. The trapdoor buttplate is numbered to the gun. Mounted on a smooth walnut forearm and straight grip stock. The '66 secured Winchester's place in the annals of the West and launched a long line of successful Winchester lever actions that remain popular to this day and still retain the basic form of the '66.