Yes, I did mean the Demas-Azur triple underhook system. It's a beautiful rifle. Griffin & Howe sells a Continental double rifle under the G&H name, but manufactured by VC. I haven't seen a review or any shared experiences with that rifle on this forum. It's a bit out of my price range. If I were to buy a double rifle, it would have to be at the 12k range at the upper end.

Check out the Griffin & Howe website.