Not too sure. It's a fairly common camera, and the uncoated collapsible 50/2 Sonnar is the more common from all the Contax mount Sonnars.
Plus, this Contax II has been fitted with an aftermarket flash PC socket. Contax connaisseurs tend to stay away from such modified Contax II bodies.
Selling to some € countries would have brought the price a bit higher because of the USD drop but not that much.