Chris Van Auken
Hi Chris! The money is intentionally printed to be one-sided, that is, the backs of all of the bills in the game look the same.
This is so you can keep how much money you have hidden from other players. You're not required to, but I typically do when I play.
Thanks for playing TvE!
D'oh, I use gaming chips so have never even looked at the supplied money, which would have made answer to my question obvious. Thanks for confirmation.
The changes in expansion have definitely improved the overall experience. Great game!