The 2011 Topps Tier One Top Shelf Relics Don Mattingly #TSR 43 Dual Relic card is a rare and valuable collectible featuring game-used memorabilia from the legendary New York Yankees player Don Mattingly. This limited edition card is part of the MLB World Series set and is serial numbered 38 out of 99, making it a highly sought-after item for baseball card enthusiasts. With dual swatches featuring New York Yankees pinstripes, this card is a unique and special addition to any sports memorabilia collection