You are bidding on a vintage Lyman No. 1 Combination Tang Sight. The sight has the letters "WS" application code on the bottom of the base which designates it for use on Winchester Models 1890, 1906 and 62. The elevation stem snaps crisply into place with zero slop. The elevation stem adjusts smoothly up and down. The fold-down peep is present. Mounting screws and spacer are included. This sight was removed from a Winchester Model 1890. On the base just under the knurled elevation area is the following: "Pat. July 25 1905" and below that on the hinge area is "Lyman". I believe some sort of locking screw is missing from one side but it does not hinder the function of the sight as the locking detent is quite positive. Ship to the United States only.