This rare 1991 Muhammad Ali & Al Unser Jr All World Anaheim Convention promo card is a vintage collectible featuring the iconic boxing legend. Manufactured by Topps, this original sports trading card is part of the All World Boxing insert set and showcases a unique parallel/variety design. With a 20 pt. card thickness and made of card stock, this piece commemorates the special event and is a must-have for any sports memorabilia collector.