This item was hand signed by all 3 Hall of Fame Managers – Bobby Cox , Tony LaRussa and Joe Torre – at a private signing. Each one added their Hall of Fame year under their signature. It will be accompanied by a Certificate of Authenticity from Palm Beach Autographs. A tamper-evident hologram will be affixed to the item. Signed items are guaranteed to pass any third-party authentication with 100% Money Back Guarantee. Each signature is witnessed by a member of our staff or comes out of a private signing.