Manufactured in 1870. This is a well above average example of a Winchester Model 1866 Musket. Winchester actually termed these Model 1866s as "Infantry Rifles" because the term "Musket" evoked visions of the unwieldy long barrel, large bore rifles that were produced during the Civil War era. This Third Model has the correct 27 inch round barrel with the shorter factory magazine tube that still carried a full 17 round capacity. The top of the barrel is marked with the two-line Winchester address/King's improvement patent dates. It has the Third Pattern receiver with the block numeral serial number located on the lower tang behind the trigger. It has a standard musket folding ladder style rear sight, fixed front sight, and straight grip stock with sling swivels and brass carbine buttplate with compartment (cleaning rod not included).