Rich in the early 70's we went skiing at Mammoth, and drove up to Montgomery Pass casino and played BJ, on our way home to So. Cal. not a chip collector then, so no chips. I remember a lot of snow, wife was cared. Also, was at the Regency casino in Laughlin a couple day's before doors locked, owner was clearing out everything all slots and tables gone, I asked for chips, he sold me many .50, 1.00 2.00 5.00 & 25.00. at face. The door already had redemption sign with expiration date and other casino address. Just caught him the few hours he was there, final day cleaning everything out.