I LOVE this little card from 1960 for so many reasons.
Selfishly, I love it because it's the only one of its kind that I've ever seen. I also have tremendous affection for the freebie paper handed out at attractions in the park's early years. They range from the rather common (the TWA flight certificate) to the very rare (such as this card). And its design is just so great.
The only part of owning it that I DON'T love is that it came out of Leon Janzen's collection after his passing. I wish Leon was still here and that this little item was still in his ownership rather than mine. That said, I think of Leon with great, great affection everytime I look at it, so I'm happy to have it as a reminder of him.
If you're interested, here is the raw data: the reverse side is blank, it's printed on card stock, and it's about the size of a credit card.