The work of Jaap Mooy (1916 - 1987) covers more than 50 years , in a period in which he constantly explored new paths and re - invented himself in terms of styles and techniques . Although Mooy became closely involved with the Cobra movement, he had no desire to become a member of the group . He was one of the first Dutch artists to use scrap metal to create sculptures . T ogether with Karel Appel and Lucebert, he represented the Netherlands at the Venice Bie nnale in 1964 . As the basis for sources of inspiration i n the 1970s and ' 80s , he alternated between the geometrical, the conceptual and the figurative .