We don't see too much about the old California card rooms on the bb. There is quite a bit of history there, particularly in the Gardena area of Los Angeles.

Here are a number of older covers from 30-40 years ago for clubs in that area:

Normandie Club
Gardena Club
Embassy Club
Horseshoe Club

There are chips from all these clubs as well for those who would like a new and relatively inexpensive area to add to their collections. Monterey Club has an ad for Primadonna Club in Reno on the inside.

Sorry, no traders of these matchcovers though.