Just discovered there are two variations of the TC2 Preferred Passengers table card from the Ramada Express Casino in Laughlin, NV. One variation has raised print and the other has normal printing, both with PPC and the patent# on the back. Remember that "raised printing" refers to how the basic card design was printed with ink that can be felt on the surface, not the embossed numbers and/or name.

Here's a scan of the cards, it's difficult to see the difference in scans so I'm only showing one of the two variations.