This hand-signed Mark Mulder Oakland Athletics card is a must-have for any serious baseball enthusiast. The encapsulated card features an autograph from the former Oakland A's player himself, adding value and protection. It is part of the 2000 SP Top Prospects set and includes a chirography parallel/variety. The card is authenticated by Beckett Authentication Services (BAS) and comes with a certificate of authenticity. Its official card number is MM and it is officially licensed by Upper Deck. Whether you collect Mark Mulder memorabilia or are a fan of the Oakland Athletics, this autographed card is a valuable investment. Signature authenticated and encapsulated in Blue Sharpie, this Mark Mulder Autographed Oakland Athletics 2000 Upper Deck SP Top Prospects Chirography Baseball Card #MM bears the certificate number 00016508759 from experts at Beckett Authentication Services (BAS).