(repost from above)..

I used to run an add in the local Galveston paper around 25 years ago and got a call from someone who had four chips he wanted to sell. They were all crest & seals - Balinese Room, H.D.C. (Hollywood D.C.) and another I can't remember (maybe Sui Jen). The fourth was the gray Great Provider. At the time it was the only gray known, and I eventually sold it in the club auction I think (brain so fuzzy).

Finding it with the other Galveston chips (and from a guy who was NOT a collector, but local), made me think it belonged there. I've looked in the Galveston area for decades for a Great Provider Club - nothing!

A real mystery.