This Autographed Bobby Brown OAL Baseball has been Personally Signed by Mickey Mantle; Ted Williams; Willie Mays; Mike Schmidt; Hank Aaron; Warren Spahn; Eddie Mathews; Harmon Killebrew; Ernie Banks; Reggie Jackson & Frank Robinson. This item is 100% Authentic to include a Certificate of Authenticity (COA) / hologram by JSA. The authenticity can be verified on JSA website.