I may be mistaken but I think a wheel of these chips sold on ebay about 2 years ago. I don't believe they have been attibuted to any one casino/club. I have them in my Generics section.

I wouldn't doubt that they may have been used in Puerto Rico. However, I think they may also have been used elsewhere.

The chips were delivered by USPC to H.C. Evans, Chicago in 1925. There is a very great likelihood that there were other orders we don't know of.