Ballpoint signature, “To Terry From Cassius Clay. Next World Champ 1963. 4/29/63,” on a back of a yellow 3.5 x 2.25 business card for a Miami limousine service. In fine condition, with show-through from a notation on the opposing side. Clay was in Miami training for his June 1963 non-title bout against Henry Cooper. The following year, Clay defeated Sonny Liston to fulfill his prediction and become boxing’s heavyweight champion. Pre-certified Steve Grad/PSA/DNA and RRAuction COA.
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