Don't know what it's used for. I've been racking my brain to figure out what limit / no limit / type game would be used for this, or if it's used as a drop chip, or in some other game (Chinese poker, 10 buck a point, etc.).
I simply have no idea. They were not in play when I was there years ago, and no one I ask knows or can give me an answer. I was fortunate enough to come across it and another that I'm posting as well.
So, here it is. Looks to be a Chipco, more texture than other chipcos. One cool think about it is a different design on each side.
Enjoy!
Side "A":
Side "B":
