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.