Official Spalding National League baseball signed in ballpoint on the side panels by twenty-four members of the Pittsburgh Pirates, including members of the 1960 World Champions. Signers include: Roberto Clemente, Bill Mazeroski, Bill Virdon, Don Hoak, Earl Francis, Harvey Haddix, Dick Schofield and Dick Groat, Ball also bears a clubhouse signature of Danny Murtaugh on the sweet spot. In very good condition, with all signatures a shade or two light, but completely legible. COA Steve Grad/PSA/DNA, COA PSA/DNA and R&R COA.
