I scored this today in an antique store for twelve bucks. I recognized the NEW head, but I'm not sure what exact model it is.
Consulting Mr. Razor's site, it looks like it could be a Somerset, a "Gold Special" or a "Blue Gold" possibly as they all look the same to me.
It came with a neat old non-Gillette case, too.
Much of the plating is worn off the handle and top plate, but the head proper where the teeth are is still yellow and shiny. Despite the cosmetic wear to the finish, this should make a very nice shaver and I'm delighted to have found it.