In light of Shoeless Moe's very cool World Series baseball find, I thought I'd start this thread. Here are a couple of mine --
The Navin Field ball is from July 13, 1934 -- Babe Ruth hit a home run that day, and of course it's also a game ball from the Lou Gehrig Streak.
I bought the foul balls from the family of a gentleman who had season tickets at Municipal Stadium in Cleveland. His seats were down the foul line in the first row, so he was able to snag many ground ball foul balls.
Greg
http://www.baseballbasement.com