I just got a unsmoked 1955 Dunhill Billiard with a denture bit in, did dunhill call this something different? I tried to research it and couldnt find any dunhill pipes that with it in the last 15 years that had this shape on the button/bit. Any help to point me in the right direction would be greatly appreciated! I might see if I can find some catalogs from the 1950's to see if that helps any.