This Autographed Riddell Authentic Full Size Speed Proline Helmet with the inscription of "HOF 08 (Green), SB XXVI MVP (Rypien), 2x SB Champs (Clark), 2x SB Champ (Manley), NFL MVP 1983 (Theismann), SB XXII MVP (Williams), #x SB Champs (Jacoby), 1972 MVP (Brown), 1982 NFL MVP (Moseley), HOF 2010 (Grimm)" has been Personally Signed by Darrell Green, Gary Clark, Dexter Manley, John Riggins, Mark Rypien, Joe Theismann, Doug Williams, Joe Jacoby, Larry Brown, Mark Moseley, & Russ Grimm of the Washington Commanders. 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 Darrell Green, Gary Clark, Dexter Manley, John Riggins, Mark Rypien, Joe Theismann, Doug Williams, Joe Jacoby, Larry Brown, Mark Moseley, & Russ Grimm 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.