Take a look at these Bud Jones chips issued by Treasure Island Casino in Minnesota. Do you notice what is present on the $1 and $2.50 chips, but not the $5, $25 and $100 chips? Look at each inlay right at 9 O'Clock. The "BJ" mark is present on the $1 and $2.50 chips only. Why would that be? Both sides of each chip is the same. These chips were (presumably) manufactured at about the same time and they were put in play at the same time.