The Fleer 2002 Tradition This Day in History Mike Piazza Insert #20 DH Mets MLB trading card is a vintage collectible featuring Major League Baseball player Mike Piazza. Manufactured by Fleer in 2002, the card is part of the This Day in History insert set and is made of card stock. The card showcases Piazza in his New York Mets uniform, making it a valuable addition to any baseball card collection. This unique piece of sports memorabilia captures a significant moment in baseball history, making it a must-have for fans of Piazza and the Mets.