I have a similar gun, in 16 gauge, and concur wholeheartedly with what Ted said upthread. These French guns carry well all day and shoot well. The price/value will depend most on the condition of the bores. For some reason, a lot of these guns have pitted bores - probably b/c of being made in the days of corrosive primers and being used in the relatively damp climate of France.

The names engraved on the bottom ahead of the trigger guard are usually the name and town in France of a sporting goods/gun retailer. The retailer would contact the manufacturer (directly or through intermediaries) and order a certain number of guns done to a certain level of finish. They could come with the retailer's name on it. It would be like a shotgun engraved "Skeettx Hardware Amarillo" or "Cabela's Scarborough, Maine" or something like that. The possibilities in that regard are close to endless.

Properly cared for, the gun will outlive you and the rest of us.

fiery, dependable, occasionally transcendent