The product is an authentic football Autographed by Pro Football Hall of Famers Jim Brown, Dick Butkus, Joe Namath, and John Hannah. The autograph authentication is done by James Spence Authentication (JSA), ensuring the legitimacy of the signatures. This collectible item is a must-have for fans of football and these legendary players, making it a unique and valuable piece of sports memorabilia from the United States. The ball does not hold air.