There was a 500 Point chip on ebay last week.
Seller had other legit older Playboy Bahamas chips as well, so it makes me think they could be associated with the Bahamas.
Looks like a series may exist.
I have found many chips in the Caribbean that have never been cataloged even going back to when Pollack and Ginsburg were interviewing casino owners/execs on the ABC islands and publishing books.
So while I have no real knowledge of where these chips came from, I wouldn't discredit anything.

Scott