Sandy Koufax's 1955 Topps rookie card marks the beginning of what would become one of the most dominant pitching careers in baseball history. Five consecutive ERA titles, three Cy Young Awards, an MVP, a perfect game, and a career 2.76 ERA across 12 seasons with the Dodgers cemented his legacy as the most unhittable left-hander the game has ever seen. This PSA-authenticated example carries a grade of 5, representing solid condition for a card that has survived nearly seven decades. A vintage Koufax rookie in any authenticated grade is a cornerstone collectible.