Riddell Full Size Throwback Replica Helmet hand signed by former Green Bay Packers running back JIM GRABOWSKI. The signature is in black sharpie and includes the inscriptions "1966 1st Rnd Pick & Super Bowl I & II Champs". Grabowski was a member of the Packers Super Bowl I and II Championship Teams!. This item was signed at a private signing and would make a great addition to any PACKERS collection! This item is guaranteed to be 100% authentic and will include a Certificate of Authenticity from JSA authentication.