A San Francisco 49ers Riddell Replica NFL Helmet hand signed by Joe Montana & Dwight Clark. The item and signatures are in excellent condition. In addition to signing his name, Dwight also inscribed The Catch Play Diagram on the item - Its one of the most iconic plays in football history. AUTHENTICATION: The item is accompanied by JSA Certificate of Authenticity - JSA Serial Numbered and Databased Hologram - Joe Montana Official Player Hologram. Picture of Dwight from the Signing.