This product is a Jim Hart signed Arizona Cardinals Riddell mini helmet with Certificate of Authenticity from D & S Collectibles. The autographed helmet is an original piece and is authenticated by the autograph authentication company. It is a valuable collectible for fans of football and the Arizona Cardinals, showcasing a piece of memorabilia from Jim Hart, a notable player in the sport. This autographed helmet would be a prized possession for any sports memorabilia collector.