Since 1969, Manfred Mohr has used computers and plotters as electronic and digital drawing aids, thus making inevitable that the creative process would be turned into a logical one. In Mohr’s own words “computer graphics … are the product of unambiguously defined problems, with the detailed analysis of the programming process that have previously remained concealed as if by taboo”. (M.M.) In the Divisibility work group, which form part of the Generative Arbeiten [Generative works] series, where the work P-306-K belong, Mohr is researching the surface character of signs made up according to defined rules laid down by the artist: “The cube is divided into four parts by a horizontal and a vertical incision. Four independent rotations of a cube are projected into the corres-ponding quadrants produced by incisions. In order to make the signs visually stable, two diagonally opposite quadrants contain the same rotation” (M.M.). P-197 J, however, makes the systematic principle transparent, through varying seriality and structural pattern.