Description:1960 Pittsburgh Pirates team auto. baseball. Near white Giles NL ball signed by (36) members of the World Champion Pirates incl. Clemente, Labine, Face, Friend, Groat (MVP), Haddix, Hoak, Law (CY), Murtaugh (ss, MGR), Vernon, Virdon, and George Sisler. Sigs range from 6-9 out of 10 except for Mazeroski who rates 4. Unusually complete 1960 Pirates ball and with the extremely rare signature of coach and HOF'er George Sisler. Includes LOA from James Spence Authentication: EX-MT