Buckstix,
Since your rifle has caliber marked in "gauge", rather than mm, it was proofed( therefore made)before 1912. Since it was proofed, it went through the proof house after the first part of 1893.
Your original question was about the scope mount. The scope is pretty well known( except maybe the reticle), but I have never seen such mounts. The apparatus to remove it is quick detachable, but not "claw" mounted. Maybe Kuduae will chime in.
Mike

Last edited by Der Ami; 10/04/16 01:19 PM.