This baseball was hand signed by Carl Yastrzemski and 8 members of the 1981 Boston Red Sox Team. It is accompanied by a Certificate of Authenticity from Palm Beach Autographs. Sweet Spot: Carl Yastrzemski. Other Signatures: Jim Rice, Tom Burgmeier , Bill Campbell , Steve Crawford , Bob Stanley , Dick Drago , Skip Lockwood , Lee Strange. 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.