Link for the action that most resembles the type action I saw: http://www.littlegun.be/arme%20belge/artisans%20identifies%20b/a%20bernard%20gb.htm, go to the bottom of the page. The shotgun was gone/sold today when I got back to the gun show, but the seller was pleased to get some idea of who the maker might be.

It was no stunner by any means, but was certainly unusual enough in our neck of the woods to stump all who examined it. According to the seller, the buyer stated his belief that it was an "English" gun, despite the Belgian proofs.