Hi Folks here are four that have stumped me. I have some info on a few of these, all four are attributed to California and all four are the same front and reverse:

Horseshoe around diamond - I was told one of these was purchased from ebay by a CA collector
BC - is been associated with a Pacific Beach card club, not sure which one
BDT - have no idea, not even sure it is CA
ARK - quite possible a new rack from the Salinas Ark

All help would be appreciated please email me...Reggie