I added another color to my collection of the Louis Prima Keely Smith poker chips last month. Here is a scan of those I have. Those with both performers on one side have the name of the hotel on the reverse (bottom half of scan is the top half flipped over). There are lots of varieties of these... the Promo Token catalog lists 7 colors of the casino-named chips, but doesn't mention those with one performer on each side. These are generally thought to be from the late 1950's.
I'd like to trade for or buy any not shown in the scan. Note that at the Saito auction last month, these cheap plastic chips with casino names sold for $25-30 apiece!