If the wall gun was not labeled, I would think it was a market hunting fowler, like a punt gun except higher quality. Most fort or wall guns I have seen were plainer, stocked more like a rifle, and made to shoot large balls that could do major damage a good distance out from the fort, more so than a much smaller rifle ball. In addition, the wall guns I've seen have usually been more dinged up. I'd like to see the muzzle on this gun, to see if a fowler barrel, or if the barrel has a heavier wall that can handle a large ball. Or maybe I just haven't seen enough real wall guns.
Shelby Gallien