John Gill 2026 Pro Set 1/1 Pre Production Proof Acetate - Atlanta Braves

Rare 1/1 pre-production proof acetate from the 2026 Pro Set featuring John Gill of the Atlanta Braves. This one-of-a-kind collectible showcases the original acetate used in the card manufacturing process, offering collectors a glimpse into the behind-the-scenes production of modern trading cards. A unique piece for serious Braves fans and proof card enthusiasts.