Best place to search might be the U.K. market as American made doubles, when you can find them, sell for much less here than in their Native Country.  I had a Parker G grade made in 1893 with damascus barrels, both nitro proofed in Britain and in proof.  The gun had a terrible amount of drop in the stock and I would never have been able to shoot with it.  It was not in tip top condition but was tight and safe; best I got for it was £40 on a trade in.  That will horrify some on the site but that is the way they go.  Good luck on trying to find one.  Lagopus.....