C3shooter is right it is not a French gun but a Belgian one, Liege is still the gun epicenter of belgium (FN Herstal...)
Now for the gun is it possible that the markings on the gun read:
"FORGERON", see engravings on this site (sorry it is in French)
Than it probably is a gun of Alphonse Forgeron, who was a Liege based gunmaker who made guns from 1880 till 1932.
At that time there where a few hundred gunmakers in Liege, this was not one off the top guys but still known in the region.
Probably a nice gun with some nice history, can you post pictures.