Your gun has some engraving under the breech balls that is similar to some JP Clabrough guns...which most, if not all were Birmingham proofed(regardless of the LONDON stamped on the ribs). The wood carving is a bit european, but I have a Clabrough that has a carved POW grip, go figure.
As 2piper said, it has the right proofs.
We see some similarities to other guns from the same time period and place of proof as well...might have been the English version of a "hardware store gun"?
Suggest a search for the name without a gun variable......might turn up as a general merchant. Might then back track to who made the guns?
Birmingham would seem to have been quite the "trade" back then, and who knows who traded what for what....would not count on finding out who made it. Might figure out who's casting the action was, who's locks....who engraved....
Search the name?
Best,
Mark
