Here is a scan of a $1.00 non negotiable orange, small crown chip from the Silver Spur in Reno that closed in 1980. It is not listed in TCR but IS listed in the "Official" guide as R-10 IMPOSSIBLE - 2 to 3 pieces known. This is the only piece I have ever seen so I paid the gentleman's price and bit the bullet<g>. If anyone has this chip I will revise my estimate of its worth. Until that happens I believe it is worth the $300.00 I paid. I don't believe you will ever see this chip on Ebay<lol>. However, you never know. Best, Jim