Joey Bosa Autographed San Diego Chargers 16x20 On Field PF Photo *Silver- JSA Witness Auth This is a Hand Autographed 16x20 Photo of Joey Bosa of the San Diego Chargers. This item has a James Spence Witness Authentication, which comes with a JSA #'ed Sticker and a Matching JSA COA. You can view this item on the SpenceLOA website and it shows when and where the item was signed. 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.