This Florida Gators Throwback Alternate BLUE Authentic Proline helmet was hand signed by Heisman Winners Steve Spurrier , Danny Wuerffel and Tim Tebow at our private signings. It is 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.