Super rare and beautiful CD 599 from Poland. One of only three known. Embossed JSN inside a circle on the dome. Good strong embossing. This beauty displays mint from the embossing side and VNM looking down the cable groove. Large umbrella chip on one side but you can completely hide it on display. If VNM this would easily be a $1000+ insulator. Asking $425 with shipping and insurance included. Let's go $375!!! Blowout price for this beauty $350!!!! Killer deal $330!!! Reduced again $320!!!!