In the early 1980's I was at an outdoor show in western Connecticut. It had poured the night before and the show was a sea of mud and lakes; as I walked by a tent calling out 'Poker Chips?" a dealer said, "I've got some" and showed me a large tin pail filled with hundreds and hundreds of the Mason design chips. Said that a fellow dealer had bought them at a western gun show. I bought a couple. What does all this prove? Nothing. But I for one doubt that any of these chips can be verified as being a part of any casino or club's chips.