This Autographed Auto Graded Gem Mint 10! January 18, 1976 Super Bowl X Steelers vs. Cowboys Replica Ticket Stub with the inscription of "HOF 87" has been Personally Signed by Joe Greene of the Pittsburgh Steelers. This item is 100% Authentic, it comes slabbed and authenticated by Beckett Authentication Services. The authenticity can be verified on Beckett Authentication Services website.