Graded by PSA EX-MT 6. The card that began a career. Less than two years from being signed to his first contract in the parking lot after his high school graduation, Mickey Mantle appeared on his first major baseball card, one tucked into the scarce 1951 Bowman high number series. Wonderful color, nice corners and solid registration highlight this example, which has the usual centering malady and a light touch of wax on the reverse. Mantle's true rookie card, graded by PSA as EX-MT 6.