Revision of Weiss' KMM 1 of 1963. Alterations to the initial design parallel those made to Weiss' HL 1 desk fan, re-issued as the HL 70.   In the original designs plastic appeared as a material element balanced against others. The unity of the designs derives from the integration of parts within a whole. In the revised designs plastic itself, as opposed to the relation of parts, serves as the principle factor of aesthetic unity.