Here is a CD 151 HG CO insulator. NATCO embossed on side of dome. Gorgeous peacock blue color. Here is a photo of the back: http://home.earthlink.net/~rajpolt/k558_2.jpg. Here is a photo of the base:http://home.earthlink.net/~rajpolt/k558_3.jpg. Damage report: 3/4 inch inner skirt chip in left front, 3/16 inch white bruise above upper wire ridge in rear, 1 1/2 inch base chip starting at left mold line and going back, 1 inch and 3/4 inch inner skirt chips in rear, small base edge flake in front, small base edge flake at right mold lone, some surface haze (tumble would clean it up), displays OK. Asking $475. Thanks for looking.