This Autographed Auto Graded Gem Mint 10! 1988 Fleer #423 Card has been Personally Signed by Greg Maddux of the Chicago Cubs. This item is 100% Authentic, it comes slabbed and authenticated by Beckett Authentication Services. We have multiples of this same item. While the photographs are representative of this item, the size and placement of the signature may vary. Each item is hand signed, therefore, each autograph is unique.