I better leave a real answer to the real experts. But using the Big Bonanza 25c as an example. It's known to exist, and if you could find one, it would be worth around $100.

Now there are 47 chips, and over 4,000 collectors. If there are 50 serious collectors, three aren't going to get this chip. <G>

How the market reacts to finding such a small number, I can never guess. When someone finds a box of 100, it often brings the value down. Even so, if the person who bid high on these would offer them for $50, they would probably get snapped up very fast. Then of course the chips would be unavailable again. All depends on demand.

Nice part is that someone who knows what they are, saved these from going into a closet as "poker chips", I'm not sure who arrowdie@aol.com is, but they saved the casino chips for us.