This Autographed Autograph Graded Gem Mint 10! 16x20 Photo has been Personally Signed by Muhammad Ali Cassius Clay. This item is 100% Authentic to include a Certificate of Authenticity (COA) / hologram by Beckett Authentication Services.The authenticity can be verified on Beckett Authentication Services website. This photo has been professionally framed to an overall dimension of 22x26 inches.We only offers Authentic Autographs by Muhammad Ali Cassius Clay through Signings, In-Person Signings or Private Collections to include a 100% money back Lifetime Authenticity Guarantee.