Has an AFL game ever ended 104-52?
It has. 104-52 has been a AFL final 3 times in 16,622 games. The first was Richmond beat Melbourne on July 5, 1930; the latest was West Coast beat GWS on March 30, 2019.
That makes 104-52 the 1534th most common final score out of 6,607 that have ever occurred in AFL. One point away, 105-52 has happened never and 104-53 has happened 3 times. At one point the score disappeared for 46 years, between 1930 and 1976.