C'mon Andrew, don't ya know that that was Mantle's "signing" shirt?
I'm surprised the card companies didn't cut it up and put it out in packs of cards.
You can't really see on that picture, but all the way to the right was Whitey Ford. I remember the line to get autographs started forming about 30 minutes ahead of time (this was at a fairly large hotel and had about 15 HOF'ers signing). After 2.5 hours of no Mantle or Ford, one of the collectors in line told me that he was staying at the hotel and was in the bar the night before when Mantle and Ford came in and they didn't leave until it closed. I guess those 10am signings were a bit early after a night of drinking. Of course, that story always seemed funny until he later admitted his alcoholism and of course his medical problems.
That picture of Bill Terry is fantastic. I got back in to the hobby just a few months before he died and never got the chance to meet him. I was able to get a signed ball from a private signing and was saddened when he passed just a few months later.