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| P-198 (1977) Cubes clipped by square frontal window Clipped also by Z Cartesian plane into front and back |
P-196 (1977) Cube clipped by square frontal window into inside / outside lines Also clipped by X Cartesian plane, top and bottom have independant rotations |
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| P-197 (1977) Cubes clipped by square frontal window into inside and outside lines Also clipped by Y Cartesian plane, left and right have independant rotations |
P-201 (1977) Cube clipped by square frontal window Also clipped by X Cartesian plane, top and bottom have independant rotations |
P-202 sequence of six drawings (1977)
Slowly rotating cube clipped by the square frontal window and the Y Cartesian plane
Only the left half of the cube is shown for each rotation
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| P-200-N, Sequence of six paintings (1977) A cube is clipped by the square frontal window and by the X Cartesian plane. The top and bottom have independent rotations. Each half rotates slowly through the 6 paintings. |
 Installation view at Galerie Teufel, Cologne 1978 |
 Installation view at Museum Pforzheim Galerie 2017 |
 Installation view at bitforms gallery, New York 2002 |
 Installation view at Museum Pforzheim Galerie 2017 |
 Installation view of P-200E 1977 at "Artistes & Robots" Grand Palais Paris 2018 | |
 Installation view of P-202 1977 at Manfred Mohr: broken symmetry / Computer Works 1969 - 2007, Kunsthalle Bremen, 2007 | |