An elevation slide from a Lyman 48 WJS sight for the Model 70 Winchester and other models. The markings are clear and legible. The click mechamism works well on both the vertical and horizontal movements. It is for the third generation of the 48 sreies of sights. The screw in the top of the elevation knob is missing but it seems to work properly. It has at leat 80% original finish. It has an assembly # L59 on the inside of the slide with the letters WJS. I do not have an eyepiece for it.