Before the explosion of sports cards in the 1990's, Willis Mays may have held the record for most card set appearances by a Hall-of-Famer. This 1963 Stat Back Exhibit displays a classic image of Mays, and is super clear, with only one slightly tipped corner and a small cardboard bright spot on the reverse. Of the 55 Mays cards from the set graded by PSA, this 7 is exceeded by only 5 other examples.