I have a few of these for sale. Ed Hertel says they are in his guide, although he made a slight mistake and listed them as $5 chips. These are maroon $10 chips (the scan makes them look redder than they are). He shows all CP chips at $15 value.

Slightly used condition, $10 each including shipping in USA/Canada. You can still see the cross-hatch pattern.

PayPal accepted. Please e-mail me if you are interested in one or more.