2015 Leaf Executive Collection Masterpiece authentic dual cut signature card of St. Louis Cardinals greats Jim Hart and Dan Dierdorf. This is a unique 1/1 card that is authenticated by JSA and slabbed. NOTE: the card frame on the Dierdorf side has 4 small dents in the top border, and there are 3 other bumps elsewhere on the border (2 front, 1 back).