The helmet is authenticated by Gridiron Authentics (One of the leading authenticators). The helmet has the tamper proof sticker/hologram on the back of the helmet and comes with the certificate of authenticity card. The helmet/autograph is in excellent condition. This is a great helmet to start or add to your collection.
I have a bunch of other autographed jerseys, helmets, and baseballs authenticated by TRISTAR, JSA, PSA/DNA, STEINER, SCHWARTZ, and LEAF Authentics. The item "Joe Namath Autographed/Signed Mini Helmet Gridiron COA New York Jets HOF" is in sale since Monday, March 12, 2018. This item is in the category "Sports Mem, Cards & Fan Shop\Autographs-Original\Football-NFL\Helmets". The seller is "xfalcons7x" and is located in Corona, California. This item can be shipped to United States.