This Autographed Auto Graded Gem Mint 10! 1992 Stadium Club Beam Team #21 Rookie Card with the inscription of "4x NBA Champ" has been Personally Signed by Shaquille O'Neal of the Orlando Magic. This item is 100% Authentic, it comes slabbed and authenticated by Beckett Authentication Services. The authenticity can be verified on Beckett Authentication Services website.