My second single shot rifle. All matching serial numbers with some honest wear on it. Overall a pretty nice rifle. Due to some horse trading I don't really have much invested in it.

The bad news is that the idiot that owned it before me and his equally incompetent "gunsmith" did a bad reline on the barrel and added two new dovetails and four holes for Unertl blocks. Fortunately (I'm sure it was an accident) they missed all the writing on the top flat. Some day I'll get around to correcting the extra holes and dovetails.

JerryH

Gorgeous Hepburn Jerry! Always a shame when people have no regard for a fine gun and begin adding holes and dovetails! 
I bought one of my Schoyen Ballards at Denver show last May and the Schoyen barrel had 6 extra holes, and 2 extra dovetails in it. Since you can't weld on barrels and not affect the bore, (some people argue you can) I did cold patches on the holes and dovetails. I threaded soft steel rod short, so when tightening it into the holes it ran out of threads before bottoming. Then screwed the rod in with Loctite on the threads and cut it off long. 
For the dovetails I made up dovetail filler material that I carefully filed to make a very tight fit. I drove it in with Loctite on it also, and left them long on both ends. Then using a dolly and a ball peen hammer I pounded both ends to expand the fillers and make them even tighter to the dovetail.
Once I filled all the mistakes I draw filed the fillers down and hand polished the flats. Then sent it off to have the barrel rust blued, and it came back looking great. I can find the fillers if I look closely, but if I don't mention them nobody notices them when they look at it.