Let me make an announcement: If anyone had rods of this beloved Dunhill bowling ball cumberland laying around, I want it! Just after lovely jet-black vulcanite, this cumberland material which consists of teeny-tiny swirls and lines of colors (like an oil slick) is my FAVORITE material around. The problem? I've never seen it on a pipe after the 1930s. Such a lovely shape; yes, but this stem has me over the moon.