Image: Australian Rules Football, North Adelaide vs. Port Adelaide
Players for North Adelaide and Port Adelaide jump for the ball during an Australian Rules Football match at Adelaide Oval, 1920
Citation: 

Image courtesy of the State Library of South Australia, SLSA: PRG 280/1/20/71, http://images.slsa.sa.gov.au/searcy/20/PRG280_1_20_71.htm, Public Domain