The red chip is 30¢, the yellow 40¢ and the 60¢ is also a "PI".
I'm guessing the "50" chip is a Paul-son mfg sample.
Sorry, these are not for sale.

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I am also still hoping to get a scan of the $3.60 Sahara Tahoe Keno chip (TCR V5490).
The Chip Rack list this as a “W” chip ($500+) but I remain hopeful somebody has one they can scan for me.

Thanks for looking.