This work phase (1989-90) is based on the 5-dimensional Hyper-cube, a structure build from a set of eighty lines. A subset of twenty lines, containing four lines from each “dimensional-direction” are chosen from this structure. Each “dimensional-direction” consists therefore of four parallel lines, represented by three thin lines and one thick line (drawn in a given 5-dimensional rotation). The work P-452-A, shows the ten possible combinatorial 2-D projections of such a group of twenty lines at a given rotation.