Jack Johnson was one of the greatest heavyweight champions. Racists hated that he was African-American. This ad offers a film of Johnson and Fireman Jim Flynn preparing for Johnson's July title defense against Flynn. Johnson had beaten Flynn in 1908, and would beat him again on 04-July-1912 in Las Vegas, New Mexico, earning a TKO in the 9th. Fireman Jim's later claim to fame is that he was the only boxer who ever knocked out Jack Dempsey.