67. 67AR YAACOV AGAM (born 1928) Untitled 1977 Signed lower left Dated 1977 lower right Lacquer paint on aluminium Getekend linksonder Gedateerd 1977 rechtsonder Lakverf op aluminium 122 x 128 x 12 cm Provenance / Herkomst Private collection / Privécollectie, Brussels Israeli by birth, he arrived in Paris in 1951. He exhibited alongside artists Jesús Rafael Soto, Carlos Cruz-Díez, Pol Bury, Alexander Calder and Jean Tinguely. He invented the transformable lamellar painting, described as "polymorphic": it presents several facets depending on the position of the viewer. His paintings are panels covered with coloured lines and shapes onto which he fixes coloured triangular strips, also vertical and perpendicular to the plane, allowing three different compositions to be seen depending on the position of the viewer, from left to right. Moving along the panel, the viewer gradually sees the composition transform and the planes that were hidden from him disappear.