This is an ORIGINAL rear site No. 30A placed on the early1890 Winchester pump .22 rifles. All parts are present on the sight, including the rear site elevator screw part No. WP45. This part fits the EARLY models of the 1890 and 1906 Winchester SHORT pump 22 rifles and has the Winchester PATENT DATE 1901 on the surface. The sight notch is circular at the bottom. Bluing condition is good, but varies among sights.