Yankee Great David Cone has personally hand-signed this MLB Baseball. Although David Cone began his career pitching for his hometown Kansas City Royals he was quickly traded to the Mets prior to the 1987 season. After establishing himself as a dominant pitcher in New York including a 20-3 record in 1988 Cone was traded to Toronto and played a major role in their 1992 World Series Championship. After another stint in Kansas City Cone was traded back to New York in 1995--this time with the Yankees. Over the next 6 seasons Cone would help the Yankees win 4 World Series Championships and even pitch a Perfect Game on July 18 1999 -- the signature game of his outstanding career. This David Cone Autograph is Guaranteed Authentic and includes a Steiner Sports Certificate of Authenticity and accompanying tamper-evident Steiner Hologram. The Steiner Seal Means Its Real. Steiner Sports is the Official Memorabilia Partner of the New York Yankees.