A Green Bay Packers Speed Replica Salute to Service 4 NFL Helmet hand signed by Gilbert Brown. The item and signature are in excellent condition. Gilbert is a former football nose tackle. He spent his career with the Green Bay Packers & is a XXXI Super Bowl Champ. AUTHENTICATION: Your item has been tagged with a SmarTag powered by Prova Technology; which gives you digital access to your items authentication records; including a proof picture from the signing.