James... you asked about why I think this might be a southern pistol.
I've seen all the similar Eastern pistols by Allen & Therber, Ethan Allen, Bacon, Allen & Wheelock, etc., that I think this one was copied from. All of those Eastern pistols are well-marked, usually have "Cast Steel" barrels, and often are marked "Patented" on the barrel...to scare away imitators. This pistol has no markings anywhere, which usually means a gunsmith copied a well-known pistol, probably upon request, in an area where the Eastern-made pistols of this style were not available. That makes me think it was probably made farther west, well outside of New England. I doubt a gunsmith would go to the trouble of copying a style of pistol, if the actual pistol was readily available for sale in his area.
There is also a general style difference between this pistol and Eastern pistols, from what I can see. The Eastern pistols of this type have shorter handles that run only about 60% of the distance up the grip, and a longer breech block/receiver that extends farther backwards to meet the grips. This pistol deviates from the standard Eastern pattern with grips that run completely up to the back of the actual breech block.
While I have no real knowledge of where this pistol was made, I do think it has a good chance of being a southern pistol for a couple of small but significant reasons.
1. Curly maple grips, which were never used on Eastern pistols of this style [underhammers are not the same style].
2. Brass strip treatment at top end of each grip. While it may look decorative, it appears functional, reducing wood erosion from percussion cap fulminates. Brass protective strips are seen more often [but not always] on southern guns. There are other percussion guns, usually rifles, where brass has been added after wood decay has taken place, so the brass wasn't an original feature, but a later repair. I think the original brass strip application suggests a southern origin, but doesn't prove it.
Not sure of this, but I don't recall decorative muzzle rings on this style Eastern pistol...but maybe I haven't handled them enough.
Shelby Gallien