Bob Lilly Signed Autographed Dallas Cowboys Riddell TK Suspension Full Size Helmet with HOF 80 and Mr. Cowboy Inscriptions. This licensed Full Size Helmet has been signed by Bob Lilly. This autograph is 100% certified and authenticated by JSA, and comes with their authentication sticker and matching certificate of authenticity that can be verified online. This Full Size Helmet is in excellent condition and is a great piece of sports history. This signed Full Size Helmet is a great gift idea for any sports collector. Commemorate the career of Bob Lilly with this Full Size Helmet and check out other memorabilia at SportsCollectibles.com for more products autographed by Bob Lilly and other athletes and celebrities.