I have had this chip for several years. All I know is that it is a Puerto Rican chip (it was delivered to a chip distributor in San Juan in 1923)

My first thought was Casino de Puerto Rico. The timing is right. I believe the Casino de Puerto Rico opened around then (although I could be wrong).

The late (and great) Al Rollins believe that the chip was from Casino de Caomo. Casino de Caomo was a private men's club. Al had looked in vain for chips from there. He believed that this chip may be that elusive chip. Al was sure that the place did have chips.

I'd appreciate any arguments for or against Casino de Puerto Rico or Csino de Caomo