Brilliantly bold signatures distinguish these two 8x10" Mickey Mantle photos that show "The Mick" wearing number 6 during his rookie season of 1951. One of the autographs is PSA 10 and the other is PSA 9. Mantle was a 19-year-old rookie when he was assigned the unfamiliar number 6, later changing to the #7 that would eventually be retired by the franchise.