Here's a really odd Harrah's card that I just came across that was never listed in the guides.... the reverse text is identical to what's on the Harrah's Total Rewards Diamond card that is copyright 2004 with NO casino logos on the back (19th issue - CG007643) ..EXCEPT.. this new found card does NOT HAVE the copyright line. Both of these Diamond cards have the slogan "Know when to stop before you start" with a registration mark at the end. I included a scan of the back of the card WITH the copyright date so you can compare.