Dodgers legend Sandy Koufax, the only pitcher to throw four no-hitters, including a 1965 perfect game, has signed this OML baseball on the sweet spot. The signature has been graded PSA/NDA 9.5 MINT+. While PSA no longer guarantees ball grades due to leather aging, this remains a stunning, high-grade example from a 1972 Hall of Fame inductee and one of baseball’s all-time greats.