These are the only two known chips. It is hard to believe that the big PR collectors don't have a one (especially the late Al Rollins who lived in PR and was consumed with PR chips, or Vic Cuellar who also lives in PR and is a collector/dealler.)

As I mentioned before, Al Rollins thought they were the first (and only) chips from a private club called Casino de Coamo. Al was always on the lookout for chips from this high end club. My first thought was Casino de Puerto Rico not only because of the lettering but because they were delivered to San Juan in 1923 which I think that date matches up well with when the Casino de Puerto Rico opened.