Will:

Most every casino in the US uses what are called American style chips. But a few, Sahara, Sands, MGM, Paris, El Dorado, London Club and one in Alantic City had and used European style Jetons and Plaques. Unlike US chips (except limited editions) most all plaques are numbered. This Registry is to list the know numbers held by collectors. I would hope that it is expanded to the other US casinos that used simular plaques.