At one time the .32 Win Spcl. was somewhat popular in France, or at least they made a number of rifles for it. Those are the only in that caliber that I've seen made outside the US. So I'd guess a Belgian-made rifle for a French customer. (My guess may well NOT be as good as yours....).

But it does look kinda Germanic and the Germans and Austrians DID love them a Martini!