This 1998 Upper Deck baseball card is autographed by the renowned former player Robb Nen, who has played for the San Francisco Giants, Miami Marlins, and Texas Rangers. Made of durable card stock material and featuring a Beckett Authentication Services slab, this officially licensed trading card has an autograph authentication number of 00016507668. It is a must-have for any baseball card collection and especially for fans of the Florida Marlins and San Francisco Giants. Add this unique piece of sports memorabilia to your collection today! Signed in Blue Sharpie. Robb Nen signed Florida Marlins 1998 Upper Deck Baseball Card #98, with authentication certificate number 00016507668 from Beckett Authentication Services.