This Autographed Auto Graded Gem Mint 10! & Framed 20x24 Canvas has been Personally Signed by Muhammad Ali. 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. This item has been professionally framed to overall dimensions of approximately 23.5 x 27.5 inches.