Glad that you got it fellows. Not too sure that I could help you much. I wan't sure that this was the correct gun, but it is. Tanselman pegged a similar piece as being a Bearden gun from the Tn/Ky border, and that works for me. Barrel is about 48 inches long with one wedding ring and is .69 caliber, mas o menus. Top flat is marked 'f. B' and has chicken track engraving. I assume that this is the piece in question tho I do have an 'M. Sheets' marked smooth gun too. It apppears to have a resused Scottish barrel with flared muzzle, and two wedding rings. These are the only two southern smooth guns I have seen, or had the chance to buy. There must be many more out there; odds of my finding the only two are pretty astronomical.
Will post some new photos soon of this one and the VA gun. Thank you for your interest.
Okay here is an update: yes the gun has been reconverted using a fine English lock that dropped into the mortise like it had been there all along. I am not a big reconversion fan
but the 'too big' percussion lock tended toward the obscene, so reconverting it made sense.
Dick