A Detroit Lions Speed Flex Authentic Salute To Service NFL Helmet hand signed by Calvin Johnson. The item and signature are in excellent condition. Calvin is a former NFL Wide Receiver. He was picked Round 1 with the 2nd overall pick in the 2007 NFL Draft by the Detroit Lions. In college he played for Georgia Tech Yellow Jackets. He is a 6x Pro Bowler, 3x First-team All-Pro, 2x NFL Receiving Yards Leader. 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.