Progression vier gleicher Gruppen von 1-4 , by richard paul lohse , 1952 , abstract , Concretism style , Orange, Azure, Turquoise, Pattern, Rectangle, Tints and shades
An orange, blue and pink square pattern on a blue background.
A square is composed of six squares. The first square is orange. The second square is blue. The third square is pink. The fourth square is light blue. 