I picked this card up because I like the idea of this trio of baseball icons on one card - Mantle actually looks kind of odd [if still dapper in 'street clothes'] out of a baseball uniform, but he's sandwiched between Willie Mays and Hank Aaron, likely doing some sort of pregame interview with the NBC microphone in-hand.
Who was the greatest player out of the three [?] - Mantle and Mays were neck-and-neck as far as being a 5-tool player with God-given ability, but maybe Mantle didn't take care of himself and his injuries ultimately allowed Mays to be the bigger standout with 660 home runs.
It has to be said however, that besides strictly the counting numbers - Mantle represented much more to all the baby boomer generation because he was the face of the New York Yankees from the early 1950s through the 1960s.
Hank Aaron seems to have flown under the radar at times - but he hit 756 home runs and seemed to produce monster numbers year after year.