http://www.lvrj.com/news/prison-casino-is-history-110786919.html

EXserpt from artical

Obsorne, 61, served a short stretch in the Nevada State Prison in the early 1990s and got to know some of the older inmates. Even during his time in prison, sports betting was rampant.

Buying prison tokens has become something of a challenge for Osborne. They are becoming increasingly rare. Occasionally they appear for sale on eBay. His winning bids typically are in the $200 range for a single token.

skippie