Thanks for the link, I was reading about how Ted Binion buried a bunch of higher-valued chips in his vault in Pahrump, NV but I didn't see anything about $25 chips. And the ones I'm seeing looks like they got a lot of play over many years, they don't look like they were locked up. It's hard to believe a Becky Binion would have the need to be selling $25 chips for $2 a pop, but maybe that's the deal she made a tech nerd who knew how to move them...

What a story, those guys:

https://lasvegassun.com/news/1999/apr/22/3-million-in-horseshoe-chips-surface/