[Edinburgh, Scotland]: Wild Hawthorn Press, 1966.
Op-Art print consisting of two parts: a paper image with an intricate geometric pattern printed in black on white, and another sheet of clear vinyl with the same image printed in white so that moving the vinyl over the paper creates endless variations. One of the most visually exciting items published by Ian Hamilton Finlay's press. First edition. Two tears to top edge of paper sheet (longer one is 1-inch), some rippling to edges of plastic overlay, very good (22.5" x 17.5"). Scarce.