Michael Mayer Autographed Notre Dame 16x20 Stretch Photo w/Baby Gronk- Beckett W Hologram *Black This is a Michael Mayer of Notre Dame Fighting Irish hand autographed 16x20 photo. Inscribed Baby Gronk. This item has a Beckett Witness Authentication, which comes with a Beckett numbered sticker hologram and a QR code for verification. 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, brand new, and in great shape.