"25¢ Mustard "Nevada" Mold with no name or location Hot Stamped in Gold"
$40-49.
Any such listing is in our reference books. But it is!!!!!

Even if such a chip was used in a casino, there would be no way to prove a certain one was used there. They are generic chips mabe both by Bud Jones and Bill Borland.
I have denominations up to $100. Some denominations come in different colors. BTY, I have a mustard $5 made by Borland.

Boxes of blank NV mold chips exist. Anyone could run off a 100, 25¢ and sell them $40-49.