Just came across another variation of the 1st issue R Card with the clear "R" from the Resorts Casino in Tunica, MS. The already listed card had a plain white insert arrow in the upper left corner on the front with no shadow around the arrow. The new found card HAS a shadow around that insert arrow while the rest of the card is the same.

Here's scans of the front of the new found card followed by the already listed card so you can see the difference.