The 1983 Topps Joe Montana #21 Sticker is a collectible sports trading card featuring the former quarterback of the San Francisco 49ers. Manufactured by Topps, this card is part of the 1983 Topps set and is a base parallel/variety card. While it is not autographed, it does feature a sticker, making it a unique and sought-after item for football fans and collectors alike. With its iconic design and representation of a legendary player from the National Football League, this card is a valuable piece of sports memorabilia from the 1980s.