This looks like what we refer to out here on the left coast, as a blacksmiths gun. Blacksmiths back in the day, were the logical place to try to sell, or trade, the metal parts left over when a horse fell on a gun, or a gun fell off a horse. Every blacksmith had a bunch of barrels, and cans of parts, squirreled away somewhere, waiting for the day he would stock up his free rifle. Usually these guns follow a similar theme. The barrel is usually a short, massive, target barrel. The lock most often is a Goulcher, or something similar. And, for some unknown reason, the furniture seems to often come from a light squirrel rifle. This makes up into a gun that is not only unpleasing to the eye, but nearly impossible to shoot. They're survival rate is very good, since they rarely, if ever, get used.
Hungry Horse