Re: Jeter Mantle baseball card?
I took a quick search and found nothing about it - it is possible this is from the 2007 set. The first series will be released today, if I am not mistaken.
Topps is running a promotion in which clues are given to unlock a Mickey Mantle cheat in a video game (name escapes my mind...will do another search for it)
EDIT: MLB 2K7