Desirable group of three 1964 Topps Giants oversized baseball cards graded "GEM MINT 10"—featuring #31 Warren Spahn, #37 Juan Marichal, and #41 Bob Gibson—each perfectly signed in blue felt tip by the Hall of Fame subject. Each card is encapsulated by PSA/DNA, with the autographs all grading as "GEM MINT 10." In overall fine condition.
