Hans Richter was a painter, graphic artist, avant-gardist, film-experimenter and producer (source: Wikipedia).He was influenced by Cubism and Expressionism and joined in 1916 Dadaism. Between 1923 and 1926, together with Werner Gräff and Mies van der Rohe, he published the magazine "G" (Gestaltung). Hans Richter is often referred as the first film-experimenter. In 1940, he emigrated to the United States.
Rhythmus 21, 1921, by Hans Richter.