Addendum:  This item is for the fight scheduled for November 16, 1964 at Boston which was postponed when Clay was hospitalized as a result of a incarcerated inguinal hernia.  It is not for the fight that took place on February 25, 1964 as is described in the printed catalog.  

Sonny Liston was the World Heavyweight Champion at the time of the first Liston–Clay fight in Miami Beach on February 25, 1964, when the young challenger shocked the world with a knockout. A year later, new Champion Cassius Clay beat challenger Liston in one quick round. Used to promote the Big Screen Theatre TV at the Miami Beach Convention Hall, this 15x22" brightly colored poster has been expertly framed to 20x28" overall. Minor surface creasing noticed; otherwise EX condition.