Bo Jackson Autographed Raiders Speedflex Authentic Helmet JSA Witnessed This Las Vegas Raiders authentic Speedflex helmet has been personally hand-signed by Bo Jackson. This helmet must be seen in person to truly appreciate. It comes with an individually numbered; tamper-evident hologram from JSA. 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: JSA Authenticated Describe how you came to possess this item: