1991 Upper Deck #557 Mark Leonard EX Excellent RC Rookie San Francisco Giants Baseball Card is a highly sought-after collectible for fans and collectors of baseball memorabilia. This rookie card features Mark Leonard, a player for the San Francisco Giants, making it a valuable addition to any collection.

Mark Leonard began his career in the MLB in 1991, the same year this card was produced, making this card a true rookie card for collectors to cherish. The card is in excellent condition, with sharp corners and vibrant colors, making it a standout piece in any collection.

This card is from the Upper Deck series, known for its high-quality designs and photography. The front of the card features a close-up image of Mark Leonard in action, while the back provides stats and information about the player, adding to the overall appeal of the card for fans.

Whether you are a fan of the San Francisco Giants, a collector of baseball memorabilia, or simply a fan of Mark Leonard, this card is a must-have for your collection. Its rarity and condition make it a valuable and unique piece that is sure to be a standout in any collection.