The Sept. 2007 Klingensmith catalog had a CD 528 for sale that ended at $600 plus $60 buyers premium plus postage and insurance. I'm selling the same insulator in the same condition (mint) with the added bonus of the original pin but for a lot less. Green aqua in color. I'm asking $300 which includes postage and insurance or you can pick it up at the Springfield, Ohio insulator show. PayPal, money order, or check are fine. Rick Soller, 4086 Blackstone Ave., Gurnee, IL 60031.

In his catalog listing, Ray indicates "Five of these survived from a 1973 discovery in the Sahara Desert near Bechar, Algeria. At least one other is known to have surfaced since that time."