Here’s a prewar forty-hole raised-tone ring by Star Brass Works of Kalamazoo, Michigan, as used in Gibson Mastertone banjos in the 1920s and 1930s. It’s in very nice condition, showing typical plating wear and scratches along with some crud where a conversion five-string neck was on it. It’s $700 or best offer with insured shipping. I’m open to offers. Sorry, no trades. Please contact me for more information.