Giuseppe, known as a painter and sculptor who created especially valuable work in historic buildings, was the son of the better-known portrait and history painter Amos Cassioli (1832-1895). The bronze door of the Cathedral of Florence still contains his self-portrait which shows him being suffocated by a snake.
The IOC launched a competition for the design of the Olympic Medals in 1923, which was won by Giuseppe Cassioli in 1928. He then created the Medals, of which the obverse side was used from 1928-2000. Only the Olympic host and the number of the Olympiad were updated. The reverse side was used from 1928-68, until the 1972 Munich Summer Olympics became the first Games with a different design for the reverse side of the medal.