1987 Fleer Update card #U-76 signed by Oakland A's Legendary Slugger Mark McGwire. Mint signature in blue sharpie.  The card grades an 8 NM-MT (Near Mint).  The AUTO GRADES a GEM MINT 10.  Slabbed/Encapsulated by PSA/DNA.  Extremely desirable signature.  100% authentic.  $4.95 for secure insured shipping. See my other auctions for more unique items at low minimum bids.