Featured is a Tom Seaver signed, game used Chicago White Sox baseball hat. This hat would make a great addition to any sports memorabilia collection! Sign up for our Sports Integrity Newsletter for deals and upcoming autograph signings! Sign up to receive special insider notifications of deals and upcoming autograph signings! Tom Seaver Signed Game Used 1980s Chicago White Sox Baseball Hat BAS+Heritage.My about us text goes here. My authenticity guarantee text goes here.