Kleine Wüste , by heinz mack , 1964 , abstract , Op Art style , Rectangle
A wooden box with holes in it on a gray background.
A square wooden box is shown on a gray background. The box has a rectangular opening on one side and a rectangle opening on the other side. The wood is a light brown color and has a textured surface. There are numerous holes in the middle of the box. The holes are evenly spaced and are of varying sizes.