How many movies have Erich Kettelhut and Wilhelm Löwitt collaborated on?

They have worked on 2 movies together! Their first movie together was The Indian Tomb, Part I: The Mission of the Yoghi (1921) while their highest rated movie together was The Indian Tomb, Part II: The Tiger of Eschnapur (1921). They have not worked together since The Indian Tomb, Part II: The Tiger of Eschnapur (1921).