This Autographed Red Pro Style Jersey has been Personally Signed by Jim Plunkett of the Stanford Cardinal. This item is 100% Authentic to include a Certificate of Authenticity (COA) / hologram by Beckett Authentication Services. This is a stock item. We conducted an autograph signing with Jim Plunkett and we have several of these available. The one you will receive will be of equal quality to the one pictured. This item can be verified through BAS. This is a X-Large sized, non-branded, custom-stitched Jersey.