This baseball has been personally hand signed by Pete Rose, Orel Hershiser, Darrell Porter, Johnny Podres, Donn Clendenon, Larry Sherry, Tom Glavine, Bob Gibson, Steve Yeager, Ron Cey, Ray Knight, Pedro Guerrero, Jose Rijo, Dusty Rhodes, Johnny Bench and Mike Schmidt. It comes with a tamper-evident label and a certificate of authenticity from Steiner. This process helps to ensure that the product purchased is authentic and eliminates any possibility of duplication or fraud. SportsMemorabilia.com firmly stands behind every product offered on our site with a lifetime authenticity guarantee that each signature is 100% authentic.