Mario Williams Autographed NC State Wolfpack Black Alternate Speed Mini Helmet GTSM Witnessed This NC State Wolfpack Speed Mini helmet has been personally hand-signed by Mario Williams. It comes with an individually numbered; tamper-evident hologram from GTSM Authentic. 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. Authenticator Pre-Certified Authenticator: GTSM Authenticated Describe how you came to possess this item: