I have been studying and reading about Reno history and came across the following in Dwayne Kling's "The Rise of the Biggest Little Town"

Tolen, Adrian "AD" (worked Club Fortune, Palace Club & Primadonna)

I quote " As a wheel dealer, Tolen was in such demand that casinos let him use his personal checks when he dealt the wheel. His own checks were a necessity because Tolen was color-blind"

My question is - do any of these checks exist or were they generic chips which different designs?