The Horizon Premium Player card on the second from the bottom row (left side) looks very close the the room key, however, iit is not the room key, but the premium players card.

I was told that the temporary card from the Lakeside is new--gal had to go to the back room to get me some. The blanks are tough to get--pictures on all of them.

Take notice of the word "Tahoe" on the Harrah's card.