Ludwig Hirschfeld-Mack, Optischer Farbmischer | optical mixer of colors. bauhaus, 1923. Today by Naef or the bauhaus-shop
This optical spinning top will mix colors right before your eyes. Aspects of color theory can be experienced with the interchangeable seven cardboard discs. The color circles according to Goethe, Schopenhauer and Hölzel can be rotated and compared with each other.
Design is fine. History is mine. 