Pedro Martinez has autographed this official 2004 World Series Game 4 ticket the game Boston won to win their 1st World Series since 1918. He also wrote 04 WS CHAMP. Autograph is authenticated and witnessed by James Spence Authentication (JSA) and comes with their uniquely numbered authenticity sticker on the item and COA with same matching number which is verified on their site. PSA the world's leading ticket grading company has authenticated the ticket and the autograph giving the autograph a grade of an 8.