The product is a Chevy Chase signed NHL Clark Griswold Chicago Blackhawks jersey with Beckett COA. This authentic item is a one-of-a-kind collectible for fans of both hockey and Chevy Chase. The autograph is guaranteed by Beckett Authentication Services, adding to its value and authenticity for any collector or fan of the Chicago Blackhawks or hockey in general. This unique piece would make a great addition to any sports memorabilia collection.