The Only Picture Showing a Championship Title Change Hands -- July 7, 2018

Exhibitors' Herald, 04-February-1922

On 04-July-1919, heavyweight champion Jess Willard, the Pottawatomie Giant, defended his title against Jack Dempsey, the Manassa Mauler. The smaller Dempsey launched a blitzkrieg and knocked Willard down seven times in the first round. Willard kept getting up, but failed to leave his corner for the fourth round. Stories say that Dempsey knocked out Willard's teeth and broke his ribs, but they are not verified. Dempsey held the title for seven years.

Nearly three years after the fight, Clyde E Elliott Amusement Enterprises offered a film of the fight.  I doubt it was "The Only Picture Showing a Championship Title Change Hands."

New York World, 03-July-1919