The 2025 National Treasures #MT-BC Bert Campaneris Game-Used Jersey Relic #/25 is a highly collectible sports trading card featuring a piece of game-used jersey from MLB player Bert Campaneris. Limited to a print run of only 75, this original card is part of the 2025 National Treasures set and is authenticated by Panini Authentic. With a serial number, this relic card is a valuable addition to any baseball card collection, especially for fans of the Oakland Athletics.