Studie zu Opus 135 , by hans hinterreiter , 1961 , tessellation , Op Art style
A picture of a red, white, blue, and black spiral design.
 an abstract art piece. It is composed of black, white, blue, and red lines. The lines are arranged in a circular pattern. The background is a light beige color. At the bottom of the image, the words "Studie zu Op. 135" are written in black.