Mathematics and art through the strings as with a bird cage and to see one form within another which excited me." The artists Theo van Doesburg and Piet Mondrian founded the De Stijl movement, which they wanted to "establish a visual vocabulary elementary geometrical forms comprehensible by all and adaptable to any discipline". Many of their artworks visibly consist of ruled squares and triangles, sometimes also with circles. De Stijl artists worked in painting, furniture, interior design and architecture. After the breakup of De Stijl, Van Doesburg founded the Avant-garde Art Concret movement, describing his 1929–1930 "Arithmetic Composition", a series of four black
G. van der Lee Rope Factory father’s footsteps and turned the ropery into a general partnership named G. van der Lee. On 1 July 1919, Cornelis Gijsbertus left the company and G. van der Lee was passed on to his brother Adrianus (1854–1920) and his son Gijsbert (1883–1966). After Adrianus van der Lee’s death on 13 May 1920, a difficult time started for Gijsbert van der Lee. As part owner of the company, he had to share authority with his three brothers Klaas, Jan and Piet, his sister Marretje, his brother-in-law Arie Beijen and his mother Christina Vriesman. Gijsbert van der Lee bought out his family