Ken Boyer Signed Index Card Autographed MLB Baseball St. Louis Cardinals JSA COAIndex card signed by St. Louis Cardinals legend Ken Boyer Certificate of Authenticity provided by JSA Certification # AE1434 Boyer spent the majority of his playing career and the entirety of his managing career with the St. Louis Cardinals, but spent the final seasons of his playing career with the New York Mets, Chicago White Sox and LA Dodgers Excellent condition; no visible creasing, no rips or tears. Autograph presents well with little to no