Glad to see you back Micheal, never miss one of your posts.
Only because I have one, I think the "Holy Grail" of the bolt action rifles are the pre WW1 Commercial Mausers used as sniper rifles at the beginning of that conflict. Not only the guns but the provenance attached to them is IMHO quite outstanding.
As far as is known only 3 out of 4600 have thus far surfaced. --- John