This 2023-24 Upper Deck Black Diamond #CW-JM trading card features Joe Mullen, a former ice hockey player for the Calgary Flames. The card is a Cup Winners Patches 1988-1989 edition, with a patch and diamond parallel variety that adds to its collectible value. Manufactured by Upper Deck, this Sports Trading Card is a must-have for any fan or collector. It is not autographed, but its rarity and unique features make it a valuable addition to any collection. Get your hands on this piece of history from the 1988-1989 season today!