His next to last season before his untimely death, Roberto Clemente stirred up 1971 with not only his second World Series title, but that Series’ MVP award, not to mention that season’s Gold Glove Award and All-Star selection. 25 signatures in all, he and his fellow Pirate champs sign this Official National League (Feeney) baseball with flair. LOA comes from Clemente’s son attesting to it having been his father’s ball.