I really like it. If I had to guess, I think it's a NE restock of a French gun brought back from the F&I war. I've seen several, including a very nice fowler fitted with a bayonet lug for later militia use with a provenance that goes back many years and establishes that it has been in Massachusetts for a very long time.
I also have the remnants of one. If I can take some photos I'll post them. The he buttplate, lock and most of the trigger guard is missing so it isn't much to look at. It was given to me by the late Don Andreason who had plans to restore it but hesitated because he didn't want it to be seen as an intact original. Don was very good at that sort of thing. I have the same reservations though I admit to not being as talented as he was.