Well I guess I am not done with the Castaways set. I am missing 2 chips I guess. Now how difficult this may be I don't know. But I have to try. I really do appreciate the collectors that take time to share their knowledge. I guess there is a $500 and a $1000 Castaways chip that has concentric circles. The Osborne chips did not. So if anyone has these and would be willing to help please let me know. Thanks!!