Official National League (Giles) ball signed in blue ink by 21 members of the 1964 Pittsburgh Pirates, including Clemente, Mazeroski, Murtaugh (clubhouse signature, Mgr., sweet spot), Francis, Friend, Blass, Face, Veale, Schofield, Virdon, Clendenon, Cardwell, Mota, and McBean. Signatures range from 5/10 to 9/10, averaging 7/10. Near Mint condition. Full LOA from PSA.