Rhythmus aus 28 Elementen in 4 Reihen in weiss 7 blau, 7 rot, 14 violett. .
St. Gallen, Switzerland: Erker Galerie, 1979. Original lithograph by Max Bill (1908-1994) measuring 39 x 57 cm. with facing text in his own lithographically reproduced handwriting One of 200 signed and numbered copies on BFK Rives. From Erker-Treffen 3. More