X-Ray should show the internal circuit. The makers don't disclose the RF details so doubt you will be able to make it respond at home. Best way is to make a specific inquiry on this bb; someone will know if that casino is currently using the RFID on their tables. I know that Wynn is, and supposedly, Palms will in the near future.

If you take the chip to the cashier of the club using the chip and place it in the right spot on the counter, they will be able to read the denomination. That's another possibility, but not something you can do at home.