I know of only three variations on the $10 chip at MGM, John. The basic blue with no marks, one with half-moon edge marks, and one with stripes. All markings were brown. Since there was only one table, there was no confusion with chips on other tables, but since they are value chips, that's probably not a concern anyway.

By the way, though the MGM game was usually a $10 minimum, there were $5 chips and occasionally you would find the game was $5 minimum. There were no variations I know of on the gray $5's.

DonL