This helmet has been personally hand-signed by the 1972 Miami Dolphins commemorating their perfect season. Including; Dick Anderson, Charles Babb, Larry Ball, Marlin Briscoe, Nick Bouniconti, Doug Crusan, Larry Csonka, James Del Gaizo, Vern Den Hereder, Jim Dunaway, Norm Evans, Manny Fernandez, Marv Fleming, Tim Foley, Hubert Ginn, Bob Griese, Bob Heinz, Al Jenkins, Ed Jenkins, Curtis Johnson, Jim Kiick, Howard Kindig, Mike Kolen, Bob Kuechenberg, Jim Langer, Larry Little, Maulty Moore, Earl Morrall, Mercury Morris, Lloyd Mumphord, Karl Noonan, Jim Riley, Larry Seiple, Howard Schnellenberger, Don Shula, Bill Stanfill, Otto Stowe, Howard Twilley, Paul Warfield, & Garo Yepremian. It is officially licensed by the National Football League and comes with an individually numbered, tamper-evident hologram from Fanatics Authentic. To ensure authenticity, the hologram can be reviewed online. This process helps to ensure that the product purchased is authentic and eliminates any possibility of duplication or fraud.