Interesting question. If that chip was a Vegas chip I would say $2k to $4k. If the chip was a Nevada chip, not Vegas, I’d say $1400 to $2000. Outside of Nevada, mexico, Cuba and PR, I’d say $500 to $800 (which is what I value it). The last couple of sales of the Nevada gaming chip (the green oversized chip) was, as I recall $2000. The are at least a dozen of those (and rumors of many more). The Peacock chip is MUCH rarer.

Below is what was found on the Peacock chip.

I collect crest and seal chips, especially chips made by USPC. These chips were made, I believe, between 1909 and 1948 or so. I make little distinction between Nevada and everywhere else. If it’s a c&s , I collect it. Luckily for me few USPC chips were made for Nevada casinos

For the most part, c&s Nevada chips are more expensive than the average Burt (all other Nevada chips) chip. The scan at the bottom shows all Nevada c&s. I would say 5 of the chips are z1 and much higher.