George Mikan autographed Unstoppable softcover book inscribed Best Wishes JSA

Unstoppable softcover autobiographical book autographed in black Sharpie by the late, legendary Hall of Famer George Mikan and inscribed Best Wishes and his jersey number 99. In superb condition. Authenticated by JSA with their matching numbered sticker and certificate of authenticity card. ONLY ONE AVAILABLE FOR SALE.