This Autographed Blue Throwback Mitchell & Ness Jersey with the inscription of "71 NFL MVP, SB VI MVP, HOF '85" has been Personally Signed by Roger Staubach of the Dallas Cowboys. This item is 100% Authentic to include a Certificate of Authenticity (COA) / hologram by Beckett Authentication Services. 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 Roger Staubach 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. This is a X-Large sized Jersey.