If this gun had walked into my shop I would have told you the following .From the pictures you have a typical though quite nicely finished , hammer gun that were made in large numbers for the colonial trade . Simple locks black powder and functional. Basicaly you have $350 in an old gun that is not safe to shoot as it has a broken stock.You already have as much imformation as you are likely to find.Without knowing what the barrels are like , internal condition etc. it would be foolish to speculate to any potential value it might have with remedial work carried out.
