Echo , by leo valledor , 1967 , abstract , Hard Edge Painting, Op Art style , Orange, Rectangle
A pair of orange and gold striped bookmarks.
Two identical identical images are side by side. They are identical to each other and are identical in design. Both images are identical, but the same color is orange. The orange is on the left side and the orange on the right side. There are orange diagonal lines on each side. The lines are evenly spaced and are of varying widths. The background of both images is white.