Joey Bosa signed Autographed Mini Helmets is the missing piece to any Ohio State Buckeyes sports room, man cave, home or office. This Joey Bosa Ohio State Buckeyes Autographed Black Riddell Speed Mini Helmet - JSA is an excellent addition to your collection, perfect for display. This Joey Bosa signature has been authenticated by industry leader, James Spence Authentication (JSA), and comes complete with a Certificate of Authenticity (COA) and matching tamper-evident sticker. Sports Collectibles is the online leader in authentic Ohio State Buckeyes autographed sports memorabilia. Shop with complete confidence as this Joey Bosa autograph is 100% authentic. Your order ships out same day of purchase.