This is the early European stuff before computers. Doesn't it just make you frustrated that movies are/were so beholden to literature and theatre. "We must have a story otherwise it's nonsense." Even directors I admire such as Hitchcock throwing around the word PURE CINEMA had it so wrong. This is the real PURE CINEMA.
This third one is Opus III from 1924.
Walter Ruttmann was German and his fellow colleagues in the art form were Oscar Fischinger, Viking Eggeling, Hans Richter etc. He also collaborated with advertisers, theatre directors, mainstream film-makers and Nazi propagandists like Julius Pinschewer, Fritz Lang, Erwin Piscator, Leni Riefenstahl. Ruttman was also a musician.
These last two are collaborations with Julius Pinschewer for advertising. The mainstream has been co-opting the underground for a long time, it's traditional.