Description:1971 Pittsburgh Pirates team signed baseball - World Series Champions. Spalding C.Feeney Official National League baseball has been signed by (22) incl. Roberto Clemente, Bill Mazeroski, Willie Stargell, Danny Murtaugh, Al Oliver, Dock Ellis, Richie Hebner, Bob Robertson, and others. Ink signatures rate 7 to 7/8 out of 10. Ball has light even toning and a few minor condition imperfections (including a minor scuff to the side of Clemente autograph). "1971" is written on the sweetspot in unknown hand. Includes full LOA from JSA: EX-EX/MT