Cassius Clay autograph with "Next World Champ 1963" inscription
An exceptional Cassius Clay autograph, signed prior to him becoming World Champion. The large ink autograph and inscription are signed on the back of an envelope, "Cassius Clay Next World Champ 1963". It would be one of many successful predictions the Louisville Lip would make during his illustrious career. The envelope measures approximately 6 x 4 inches. Excellent condition.