as pointed out these are generic chips. You'd have to find someone who saw them in play. PW-VF in Dale's book. I have a set 600 or so Arabians said to have been in play at a Wyoming illegal casino but who knows? I also have several boxes of alphabet inlays from P.J. Sullivan's in Saratoga and as I was there for the sale, I know they were used at his illegal casino---but they aren't terribly collectible because they lack attibution.