Double planetoid
wood-engraving printed from four blocks, 1954, diameter 37.5 cm

Two regular tetrahedrons, piercing each other, float through space as a planetoid. The lightcolored one is inhabited by human beings who have completely tranformed their region into a complex of houses, bridges and roads. The darker tetrahedron has remained in its natural state, with rocks, on which plants together to make a whole but they have no knowledge of each other.