The 2021-22 Donruss Optic Signature Series Holo #42 Dan Issel Auto is a single basketball trading card featuring an autograph from Dan Issel. Manufactured by Panini, this card is part of the modern era of sports trading cards and is in near mint/mint condition. The card showcases Issel's signature and is a valuable collectible for fans of the National Basketball Association (NBA) and National Collegiate Athletic Association (NCAA). It is a unique and sought-after piece for collectors of sports memorabilia and trading cards.