Not sure what CDthis is, the measurements do not coordinate with what's in the guide but really looks a lot like the 1110 CD, just the wrong size, smaller,2" X 2".Crude made insulator with wavy WG, has a lot of nice bubbling and swirls in the glass and what seems to be a carbon deposite in the glass. Mint condition with standard feather flakes about the hole. Displays perfect! $25 shipped