This official Oakland Raiders Riddell mini helmet has been personally hand signed by the former Louisville Cardinals running back Michael Bush. This item was signed by Michael Bush on October 16; 2007 in Oakland; California under the direct supervision of American Icon Autographs. This item comes with an individually numbered; tamper evident sticker from the industries leading autograph authenticator PSA/DNA and comes with a lifetime guarantee. To ensure authenticity; the hologram can be reviewed online. This process helps to ensure that the product purchased is authentic and eliminates any possibility of duplication or fraud. This item features PSA/DNA's Rookie Graph COA. The Rookie Graph COA signifies that the item was signed by the athlete during their first professional season. This really gives the item a premium value. Can you imagine having an authentic Mickey Mantle signed item from his rookie season with the Yankees?