Good Morning Rich,
First off one would have to have proof or documentation that the chip is from Nevada (Tahoe in your case)since it carries no location on the chip. Do you have documentation from U.S Playing Card Company or who ever made the piece that it is from Nevada? If not, your guess is as good as mine, is as good as James is as good as (God forbid) Trimbles. In my opinion, to command those type of prices with a piece that bears no location YOU NEED THE SUPPORTING GOODS!
Best, Mr."P"