Features: Autographed by Tommy Herr Authenticated by JSA Lifetime Guarantee of Authenticity COA Beautiful display piece Bold Signature Details: A fantastic Adult Size XL hockey jersey hand-signed by MLB legend Tommy Herr. The signature has been authenticated by JSA and includes their COA and tamper proof serial-numbered stickers. An absolutely beautiful piece! All of our items are guaranteed authentic for life and are backed by our 20+ years in the autograph business. All items are hand-signed; we never sell copies or reproductions of any kind.