Ken Norton is a former WBC Heavyweight Champion of the World. He is best known for his 12-round split-decision victory over Muhammad Ali, on March 31, 1973. Ken Norton has hand signed this Boxing 8x10 Photo. Pristine Bold Blue Full Autograph. Sports World Collectibles Authentication #A29121 & Athlon Sports Collectibles Certificate of Authenticity. Image of actual item in stock - as shown