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1999 Upper Deck Black Diamond Mystery Numbers /1600 Sammy Sosa #M16

July 25, 2026 0

The product is a 1999 Upper Deck Black Diamond Mystery Numbers trading card featuring Sammy Sosa of the Chicago Cubs. This single-insert card is an original issue by Upper Deck, with a unique card number M16. It is a sought-after collectible for fans of baseball memorabilia, especially those interested in adding a piece from the Black Diamond set to their collection. The card showcases a parallel/variety design and is a valuable addition to any sports trading card collection.