I've only seen a couple of H&W's on the net. Westley Richards had one in .505 Gibbs for a while, but it seems to be gone. Champlin has this little .375 H&H beauty , but of course, not for sale.

This Hagn was built off of an H&W. I saw on the single shot forum a couple of pictures of H&W built Hagns. I have yet to find any pictures of an H&W finished double, though. Hope this helps you.