1951 Bowman Baseball #305 Willie Mays rookie card. Graded PR 1 by SGC. Mays' rookie card, which is also one of the scarce high-numbered cards in the set, has always been one of the most important offerings of the postwar era. The offered example displays a few obvious flaws, including a tiny area of paper loss in the lower right corner, which have resulted in its technically accurate grade. However, most of the detracting elements affect the corner areas, leaving Mays' image fairly unaffected. That, along with its bold colors, make it more visually appealing than one would expect for a card receiving this numerical grade.