Not sure if I'm making any headway or not but now know of about six of these rifles. The latest one with the Kornbrath engraving has "WIBEHER" written in pencil in the barrel channel and hard to read according to the owner so it may be something else. I have a copy of Kornbrath's customer addresses and nothing close. I have about a thousand custom rifles in a database from "Arms and the Man" and "American Rifleman" but nothing matches the initials on the rifle, sometimes I get lucky. The rifles that I have good info on are all Springfield so the gunmaker MAY have been east of the Mississippi.