Got this little beauty recently with some other items and am trying to identify the maker, application, and approximate value. Bottom is radiused for a barrel mount. Hole spacing is 0.875” Center to Center. Height from top of barrel to top of blade is 0.530” and notch adjustment is made by loosening a single screw on the blade face and working a lever on the right side. Blade insert is pivoted on the lever. Laser tic marks show elevation references as well as windage. Windage Adjustments are accomplished by loosening the forward mounting bolt which holds a beveled insert that clams down onto the sight’s dovetail.
It is in fantastic condition and is high quality. The sight itself is reminiscent of Lyman or Marble. Having difficulty finding anything similar to help identify who made it and what it is for. Any help would be appreciated!