Featured is a Bill Mazeroski signed Pittsburgh Pirates MLB baseball in which he added the "'HOF 01" inscription". This baseball was hand signed by Bill Mazeroski and has been authenticated by JSA authentication services. Included with the baseball is a JSA hologram and certificate of authentication. This item would make a great addition to any sports memorabilia collection! SPECIFICATIONS Autographed By: Bill Mazeroski Team: Pittsburgh Pirates Sport: Baseball Authentication: James Spence Authentication (JSA)