Mazeroski is regarded as one of the greatest defensive second basemen of all time. He was an All-Star for seven seasons and a Gold Glove Award winner for eight seasons. He was a key member of the Pirates' World Series-winning teams in 1960 and 1971, the former of which he clinched by hitting a walk-off home run in Game 7—the only game 7 walk-off homer in World Series history.
This Rawlings official Natinoal League baseball was signed in blue by Mazeroski and inscribed, "HOF 01." This baseball includes a Great Moments COA.