Sur fond gris n. 10 , by alberto magnelli , 1963 , abstract , Abstract Art style
A painting of squares and rectangles on a gray background.
 an abstract painting. The painting is composed of various shapes. The shapes are black, brown, white, blue, orange, and yellow. The background is a solid gray color. The lines are thin and black. The top left hand corner of the painting has the number "43" written in black.