The Topps Stranger Things Welcome to Upside Down Auto A-SA trading card features an autograph from Sean Astin, who played Bob Newby in the popular Netflix series. This hard-signed card, manufactured by Topps in 2019, is a collectible item for fans of the Stranger Things franchise. With its unique design and exclusive autograph, this trading card is a must-have for any collector looking to add a piece of the Upside Down to their collection.