The 2025 Leaf Optichrome A Glimpse Into The Future Gabe Gaeckle PreProduction Proof 1/1 is an exclusive and highly collectible sports trading card featuring Major League Baseball player Gabe Gaeckle. This one-of-a-kind is part of the Leaf Optichrome set, offering a unique parallel/variety in Pre-Production Proof. With a limited print run of only 1, this original card is a valuable addition to any baseball card collection, showcasing Gaeckle. MLB Athletics Prospect.