This Autographed Auto Graded Gem Mint 10! 1970 Topps #90 Card with the inscription of "HOF 85, 2003 Yds 73'" has been Personally Signed by O.J. Simpson of the Buffalo Bills. This item is 100% Authentic, it comes slabbed and authenticated by Beckett Authentication Services. The authenticity can be verified on Beckett Authentication Services website.