In the second part of
this **work phase (1976-77)**, cubes are divided into two parts
by one of the Cartesian planes. For each image the two partitions
contain independent rotations of a cube. They are projected into
two dimensions and clipped by a square window (the projection of a
cube at 0,0,0 degrees). By rotating both parts of these cubes in
small but different increments, long sequences of images are
developed.

Exhibition catalog:
Manfred Mohr, "Dessins Génératifs - Cubic Limit II", Galerie Weiller, Paris, 1977 (catalog and shows)

Also:

Manfred Mohr, "Generative Bilder und Zeichnungen 1977-78", Galerie Teufel, Cologne (catalog and show)