This Parris Campbell Autographed Ohio State Buckeyes Silver Riddell Replica Full Size Helmet - JSA Certified Authentic comes with a Certificate of Authenticity (COA) from JSA. The product has been personally hand-signed by Parris Campbell. Prime One Sports is an online leader in authentic Parris Campbell signed memorabilia. Your order ships out same day. Commemorate the career of Ohio State Buckeyes great, Parris Campbell with a certified collectible at a great value.