Dak Prescott Autographed Dallas Cowboys Speed Full Size Helmet Beckett Witnessed This Dallas Cowboys Speed Full Size helmet was hand signed by Dak Prescott. It comes with an individually numbered; tamper-evident hologram from Beckett 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: Beckett Authenticated Describe how you came to possess this item: