This is a Tom Mack autographed NFL Wilson composite football featuring "HOF 99" inscription! Tom Mack signed the football in silver paint pen. Check out the photo of Tom Mack signing this EXACT football. This signature has been examined and authenticated by Beckett Authentication Services (BAS), and has been deemed authentic. The Beckett Certificate number is Y77885. 4x6 proof photo(s) of the athlete signing will also be included with your purchase (as shown).1