The Optichrome 1/1 Pre-Production Proof Duel Up trading card features baseball legends Eddie Murray, Dawson Pérez, and Tony Pérez in a unique Cracked Ice parallel variety. Produced by Leaf as part of the Leaf Optichrome set, this one-of-a-kind card is a collector's item for fans of Major League Baseball. With a limited print run of 1/1 proof, this card showcases the renowned athletes in English language, making it a valuable addition to any sports trading card collection.