1958 Topps Baseball #418 "World Series Batting Foes," signed in blue marker by both Mickey Mantle and Hank Aaron. PSA has encapsulated the card, grading the signatures MINT 9 and certifying the card as Authentic. Just thirty-five signed examples of this card are listed in the PSA Population Report, but no distinction is made as to which are single-signed or dual-signed. We believe it is safe to assume that the majority are single-signed, especially since this is the first dual-signed example we have ever offered and we have seen fewer than eight others. The card displays a small diagonal crease in the upper right corner and modest corner wear. This is an outstanding example of this dual-signed card and one that would be a welcome addition to any advanced Mickey Mantle, Hank Aaron, or signed 1958 Topps collection.