Daryl, if they have Belgian proofs and a French address, I guess I differ with you on terminology. I just call them Belgian doubles, pretty much like the Belgian doubles that came to this country with British or American names on them.

Gastinne Renette . . . I owned a Petrik system OU that was marked Gastinne Renette.

The French had a very active cottage industry of their own. You'll see a lot of guns with nothing but St. Etienne proofs and either no name or a French address (quite often provincial rather than Paris), barrels by a French barrelmaker like Fanget or Breuil. Quite a few of them used the Helice system, after the Verney-Carron patent expired. But there certainly were a lot of Belgian guns marketed in France. I just traded a 16 marked "C. Mode" with a Paris address but Belgian proofs.