This Riddell Helmet was personally hand signed by Joe Greene in black paint marker with the inscription "HOF 87 & 4X SB Champs". The Helmet was signed in the presence of a Beckett Authentication Services Representative and comes affixed with a witnessed individual numbered tamper-evident sticker and matching Certificate of Authenticity card. The Helmet also comes with a Famous Ink hologram guaranteeing authenticity for life. Domestic ground shipping for this item is FREE to the contiguous 48 states. Please contact us for International and other shipping options.