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