Found there are two variations of the 10th issue Island Gold Players Club card with the palm tree from the Isle of Capri Casino in Vicksburg, MS. These cards specifically say they are valid only at the Vicksburg property on the reverse.

The variation we already had listed on the ChipGuide has the reverse text 70mm wide while the new found variation has the reverse text 76mm wide. Otherwise the cards have identical text, they just have slightly different font sizes with the narrower paragraph moved right to make room for the punch hole.

Here's scans of the front and two different reverses so you can see the difference.