Todd - That card is listed on page 38 of the 6th Edition of the Lamb/Wells Slot Card Price Guide (page 62 of the 5th Edition). It is an "XX" card, which means the exact use is unknown, but it could have been used as 1) a check cashing card at the cage; 2) a table card; or 3) a generic card that is issued when they run out of their regular cards. The listing says that there is nothing on the back of the card except a mag strip, the card does not have a manufacturer listed, and it is "scarce". The Guide lists it's value as $3.

If you would be interested in a trade, I could send you 2 Dominos pizza keys and 2 Pizza Hut keys from the hotel I work at in Las Vegas.

Anyway, I hope this info has been of some help.

Dave Johnston, Sec/Treas - Slot Card & Room Key Collectors Club