This 1988 Fleer baseball card features an authentic autograph from former Chicago White Sox player Bobby Thigpen. It is certified by Beckett Authentication Services (BAS) with authentication number 00016508316 and made of card stock material. A licensed trading card from Fleer, this rare piece of sports history is a must-have for collectors of baseball memorabilia, especially those who are fans of the Chicago White Sox. Bobby Thigpen's signature in black Sharpie has been authenticated and encapsulated by the experts at BAS. Certificate number 00016508316 is included.