My friend Dick Brach in New Jersey sent me these from Harrah's Atlantic City. There is a slight color variation in the arrow, one is purple (the AC one) and the other is blue...Dick says the blue one is the tough one to get.....It looks like Harrah's is going to an all property room key. No specific location on this one...I just talked to Bob Gabel who is in Tunica, and he said Harrah's has a new room key there....Bet it is this one....I have a few room key books for sale $24.95 priority mail post paid.....