Torsions to 9 , by walter leblanc , 1971 , abstract , Op Art style
A blue wall with a black design on it.
Two panels of a light blue wall are visible.  The panels are made up of thin, straight lines that form a series of vertical lines.  Each panel is equal in size and shape.  There are two visible panels, one on each side of the larger one. The larger panel is on the left side and the smaller one is in the middle.