This is a very rare ORIGINAL 32A rear site that was only available as a special order on the 1890 Winchester pump .22 rifles. This sight could also be special ordered for the 1902, 04, 06, 03 and 60 This part fits in the barrel rear dovetail on these Winchester 22 rifles and uses the 2C elevator (part st211-b wop). The sight has an extra long neck, DOES have the Winchester Patent date on the surface, and has a V-shaped notch. The attachment screw (st98) and elevator screw (wp45) are included and present on the sight, and those parts can also be purchased separately.
