Another response from the World's Fair collecting community (those who specialize in EXPO 67) suggests that if there was a casino at EXPO, the EXPO 67 logo should have been depicted on the chip.

So far I've found nothing about a casino being at EXPO. The Gaming Table has no entry, either.

Anyone from Canada (Hey, Rick... you seem to know a lot ) know something I can report to this World's Fair group..?

JB