Sight - Sporting leaf sight Rifle Winchester 1866 1876 ORIGINAL

This is an ORIGINAL Sporting Leaf  sight that was used on the early 1866 and 1876 rifles. Excellent condition , minimal  wear on left side where the numbers stamped on  .Fully functioning, springs are solid, no scrapes, damage present on body . NOTE It does not have the 3/8 inch base, it is slightly smaller.