1971 was literally a banner year for Pittsburgh, which saw a new stadium go up during the summer and the hometown Pirates popping champagne bottles in the fall after outlasting the Baltimore Orioles in a seven-game World Series - the first ever played under the lights, also at Three Rivers Stadium. From that magical season comes this Official National League (Feeney) baseball that once belonged to onetime World Series hero Bill Mazeroski and comes with a signed letter from the Hall of Famer stating that the ball was part of his personal collection, making it even more special. The ball is a clean, high grade example in NRMT-MT condition with the signatures averaging 8/10. Included in those are: Clemente. Maz, Stargell, and most other members of the team. Also comes with JSA letter.