Three-leaf express style rear sight, 100, 200, 300

Rear sight, came off of a European import rifle. I installed a receiver sight so don’t need this one. Nice blued steel with three sight leaves marked 100, 200, and 300. Fits in dovetail slot. The base is 17.8mm long ways and the dovetail itself tapers from 9.6 to 9.2mm wide. Good condition $200 plus shipping