Some of you may remember last year when I posted about a custom 25-06 built on a Mauser 98 action that I picked up at a local gun show, and put into a walnut Boyd's stock that I had laying around. The rifle was built by an unknown gunsmith using a 26" barrel of unknown origin (although it looks in fine shape), and I can't really find any proof marks other than what is shown in the following picture. I was curious if anyone recognizes these proof marks, and has an opinion on whether they are original or would have been added later on (perhaps by the gunsmith who built the rifle). Thanks!