I don't claim to be an "expert" Michael ...
... I've been to Puerto Rico only once in my life, and that was just this year ... and I don't recall any of your posts asking for my opinion ... so how is it that I have "refused to respond" to a question that I did not know about? Have you ever emailed me requesting information on PR chips? I'll admit that I didn't read your current post with the heading "FOREIGN CASINO CHIPS FOR SALE" because I don't collect "FOREIGN CASINO CHIPS". As most folks know, Puerto Rico is a possession of the United States and as such I don't consider Puerto Rico chips to be "Foreign".
If you have any specific question regarding Puerto Rico chips, I would be happy to answer them via email.