During a 17-year baseball career, David Cone pitched from 19862003 for five different teams. Cone pitched the sixteenth perfect game in baseball history. He also set the MLB record for most years between 20-win seasons. He was a member of five World Series championships. Bobby Valentine was promoted to manager of the Mets with 31 games left in the 1996 season. Over the next two seasons, with Valentine at the helm, the Mets began a resurgence, finishing 14 games over .500 (8874) both years. Phil Linz is more likely remembered for the infamous (Yankees) "Harmonica Incident". David Cone, Bobby Valentine & Phil Linz have all three hand signed this RONL Rawlings Official National League Baseball (Coleman President). JSA Hologram #EE41634 and JSA Certificate of Authenticity. Exact Ball as shown. Minor tone spots, sold as is, no returns.