The helmet has been autographed by Heisman Trophy winner Charles Woodson in gold pen along with his Michigan player number and the words 97 Heisman also in gold ink. The autograph is authenticated by P.With the certificate shown in the photos. The item "Charles Woodson / Autographed Michigan Wolverives Mini Helmet Certified in Box" is in sale since Saturday, August 18, 2018. This item is in the category "Sports Mem, Cards & Fan Shop\Autographs-Original\Football-NFL\Helmets". The seller is "issuechosen826" and is located in Jamaica, New York. This item can be shipped worldwide.