This custom XL Jersey was signed by Pittsburgh Steelers Jack Ham and inscribed Steeler 4 Life. It come's with a Certificate of Authenticity from TSE- Total Sports Enterprises with their matching numbered hologram affixed to the jersey #16611. TSE is Jack Ham's exclusive sport's marketing representatives. This comes with our Atkins Sports Memorabilia 100% Lifetime guarantee on the Authenticity or you're money back.  ( Stock #2548 )