The 2018 Leaf Flash Football Baker Mayfield Rookie Auto #BA-BM1 42/50 is a highly collectible sports trading card featuring the autograph of football player Baker Mayfield. This card is part of the 2018 Leaf Ultimate Draft set, with a limited print run of only 50 copies. The card is made of card stock and is authenticated by Leaf, making it a valuable and sought-after item for fans of the Oklahoma Sooners and Cleveland Browns. This rookie autographed card showcases Mayfield during his time in college and early professional career, making it a prized piece for collectors.