If you are talking about amounts. The chips have difference colors. If you talking about how one casino seperates their chips from another casino, there are usually distintice marks such as the initials or emblem of the casino on the center of the chips.
Also they try to catch counterfit chips by weight.
I’m sure there are other ways I don’t know about.
Hope that provides some answer for you.

First off, the tables do nothing but provide a surface to play on. haha. The casino employees are the ones who decide if the chips are theirs or not. The casinos all have “personalized” chips. I believe no two casinos can use the same graphics on chips. Now if you are talking slots and the one dollar coins you can put in em, that’s different. I don’t know how each machine would tell them apart. Could be a laser in the coin slot that reads the design of the coin as you insert it and will either accept or reject it as you put it in. good luck

They look at them

by color genius

For table chips each table has chips that have a differant emblem in the middle. Go to the site bellow you will be able to see the roulette chips