I got my roulette round robin back Friday and was pleasantly surprised at the quantity and quality of chips received. I started with 30 chips and got back 35 of which I add 15 or so to my collection. There was only one chip that was not in very good condition. There was at least one person who didn't read the directions as I received this generic roulette back. The question is, is this design used in only one casino and if so, which one is it?