This autographed Riddell Speed mini helmet has been personally hand-signed by Ed Podolak of the Iowa Hawkeyes. Podolak added the inscription "HOF 21" along with his signature. This autograph is certified by James Spence Authentication's (JSA) Witnessed Protection Program. That means that a JSA representative was present when this item was signed. It comes with the numbered hologram and matching Certificate of Authenticity.