1971 Pittsburgh Pirates Team Signed Baseball. Eleven seasons after Bill Mazeroski brought a thunderous close to the 1960 Fall Classic, the Steeltown sluggers swashbuckled their way back to the World Championship with another seven-game nail-biter. The club was anchored once again by its 1960 hero and fellow Hall of Famer Roberto Clemente, each appearing in the 8/10 or better ink consistent throughout all twenty-eight autographs applied to this ONL (Feeney) sphere. Other notables: Stargell, Virdon, Cash, Oliver, May, Alley and more. One of the finest examples we've encountered from this memorable squad. Pre-certified by PSA/DNA. Auction LOA from James Spence Authentication.