This is a true treasure! You are bidding on a baseball by American starting pitcher Tom Glavine.

Glavine is a five-time 20-game winner and two-time Cy Young Award winner, and one of only 24 pitchers (and just 6 left-handers) in major league history to earn 300 career wins. As of 2009, his 305 wins rank him as baseball's winningest active pitcher. He is also known as an excellent fielding and hitting pitcher.