This Autographed Riddell Full Size Speed Rep Helmet W/ Uv Mirrored Back Acrylic Display Case with the inscription of "Heisman 1978 (Sims), Heisman 2003 (White), Heisman 1969 (Owens), Heisman 2008 (Bradford)" has been Personally Signed by Billy Sims, Jason White & Steve Owens, Sam Bradford of the Oklahoma Sooners. This item is 100% Authentic to include a hologram by Beckett Authentication Services. This item will come with an affixed Beckett Authentication Services (BAS) authentication sticker, which includes a scannable QR code to verify authenticity. Please note that Beckett no longer provides serial-numbered COA cards, and the attached BAS sticker will serve as the complete authentication for this item. This is a BAS Witnessed Protection Program item which means a Beckett Authentication Service representative was present when this item was being signed. We conducted an autograph signing with Billy Sims, Jason White & Steve Owens, Sam Bradford where multiples of the same item were signed. While the photographs are representative of this item, the size, placement and strength of the signature may vary. Each item is hand signed, therefore, each autograph is unique. This item can be verified through BAS Witnessed.