That is a good looking gun.
That action is seen on many French and Belgian boxlocks. Some have a fancy back, like this one, and some are plain as the day is long, but, whoever sourced that action made a bunch of them for most of 100 years. Initially, Id suspect Manufrance, but, I simply have no proof.
The holes in the flats spook me. Not a place I like to see ventilation.
Gene, the decorative bit in front of the trigger guard has a proper French name, that escapes me at the moment. It is typically seen on old, better quality French hunting guns.
Do you know it? I forget.
Best,
Ted