This Autographed Auto Graded Gem Mint 10! Hillerich & Bradsby Louisville Slugger Player Model Baseball Bat with the inscription of "No. 7" has been Personally Signed by Mickey Mantle of the New York Yankees. This item is 100% Authentic and comes with a PSA/DNA Certification Card and a matching numbered Hologram. The authenticity can be verified on Professional Sports Authenticator website.