Costruzione Sigma N°4 , by luigi veronesi , 1975 , abstract , Concretism style , Circle, Clock
abstract painting with lines and circles
 an abstract painting. It has a white background. In the middle of the painting is a circle. The circle is blue and white. There is a yellow dot in the center of the circle. There are black lines surrounding the blue circle. On the left side of the picture there are green lines that are parallel to each other. The lines are thin and long.