Judging by the medals won, Luxembourg painter Jean Jacoby is the most successful Olympic artist, winning the gold medal for his 1924 painting Étude de Sport, and for his drawing Rugby in 1928. Swiss artist Alex Diggelmann won three medals, a gold one in 1936 (for his poster Arosa I Placard), and a silver and a bronze in the 1948 applied arts & crafts class, both with commercial posters. Danish writer Josef Petersen won a silver medal on three occasions: in 1924, 1932, and 1948.