This Autographed Game Used Green Reebok Jersey with the inscription of "Game Used 11/18/07 Panthers 17 Pack 31 218 yds 2 TD's" has been Personally Signed by Brett Favre of the Green Bay Packers. This item is 100% Authentic to include a Certificate of Authenticity (COA) / hologram by Beckett Authentication Services. The authenticity can be verified on Beckett Authentication Services website. The jersey has also been photomatched by Resolution Photo Matching, and coses with a LOA from tehm and a LOA signed by Brett Favre as well.