The Rainbow Club was located in Gardena, California from 1945-1982. Gardena is a suburb of Los Angeles and has a great poker tradition. The cardroom at the Rainbow was a neighbor to the Monterey. The two clubs shared several of the same owners and a covered walkway connected the two facilities. Mike Caro has written about the Rainbow in some of his articles for Card Player.
I think the rack for the Rainbow on the small crown mold is one of the best ever. It has nice vibrant colors, and it's nostalgic to see five and 10-cent pieces. This set is easily in my top-5 racks of all-time. They're up there with the 'Can Can' girl chips from The Last Frontier, some of the Flamingo pieces on the H-mold, and the Golden Nugget rack on the house mold of the 1960s.
You can see the original pieces here:
http://cashcoinconnection.com/gaming...w/Rainbow.html
BCC is issuing a new set of Rainbow Club commemorative chips shortly. The chips will bear a marking on the inlay to distinguish them from the originals.
Here's an image:
edit*, typed Old Frontier originally instead of Last Frontier by mistake.