This Dallas Cowboys Riddell Pro-Line authentic helmet has been personally hand-signed by Hall of Fame wide receiver Michael Irvin with the inscription "HOF 2007." 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. If a product is unsigned or non game-used, a hologram will not be included Michael Irvin memorabilia. Dallas Cowboys memorabilia