⚾ Mike Mussina Signed New York Yankees Pinstripe Baseball Jersey JSA COA – A JSA Authenticated Autographed Yankees Pinstripe Jersey from the Baseball Hall of Famer Who Won 270 Games with Impeccable Command Across a Career Defined by Excellence

⚾ Mike Mussina spent nine seasons with the Baltimore Orioles before joining the New York Yankees in 2001, and across both tenures he built the case for a pitching career defined by sustained excellence – a right-hander with four pitches he could locate with precision, a knuckle curve that has been called one of the best breaking balls of his era, and the durability to make over five hundred career starts across eighteen seasons. Mussina won 270 games in his career and posted a career ERA well below four, finally reaching the 20-win mark in his final season in 2008 at age thirty-nine before retiring – a fitting exclamation point on a career that earned him Baseball Hall of Fame induction in 2019. This framed 35x39 New York Yankees pinstripe jersey carries JSA COA authentication, providing third-party verification of Mussina's autograph. Condition: NOS.

⚾ James Spence Authentication (JSA) is one of the leading third-party authentication companies in the sports memorabilia industry, providing written documentation and tamper-evident hologram labeling that verifies the authenticity of each autograph against known signature examples. A JSA COA is widely recognized by collectors, dealers, and auction houses as a trusted standard for signed sports memorabilia. Condition: NOS.

⭐ Mike Mussina. New York Yankees. Pinstripe Baseball Jersey. Signed Autographed. JSA COA. Baseball Hall of Fame 2019. 270 Career Wins. “Moose.” Framed 35x39. Hall of Fame Sports Memorabilia. Condition: NOS.

⚾ Mike Mussina. Signed New York Yankees Pinstripe Baseball Jersey. JSA COA. Hall of Fame Sports. Condition: NOS.