The Oregon Blackjack chips are not from a fun-nite operation but from a floating 21 games that operated at several bars and hotels up and down the Oregon coast. The gambling was real.

The Western States Casino Collectibles chips were made by Armin Pfaender when he organized an early club for chip collectors in California. Goes back 10 years or so. Armin posts on this bb from time to time.

The Plaza chip cannot be positively attributed, but I believe it's a Cuban.