Stefon Diggs Autographed Buffalo Bills F/S Flash Speed Authentic Helmet-Beckett W Hologram *White This is a Hand Autograph of Stephon Diggs of the Buffalo Bills on a Riddell Football Flash Full Size Speed Authentic Helmet. This item has a Beckett Witness Authentication, which comes with a Beckett #'ed sticker hologram and a generic Certificate of Authenticity. You can view this item on the Beckett Authentication website. It was signed either at a public autograph appearance or a Private Signing. This is a stock photo of the item. Although you may not receive this exact item, the item you receive is virtually identical and brand new in great shape.