Roy, the speculation in the replies are just that. Archie explained it, but to SEE it for yourself, go to the Club website, click on Reference, then Chipology 101.

Slide 31 shows a Bud Jones roulette chip in its complete version and with the body color removed to show the plastic core inside. You can see exactly how the core colors show through to make any of the Bud Jones chips.

Chipology 101 also illustrates the value of seminars at the convention!

Michael