rot 6: modelle
Stuttgart: Verlag der Augenblick, 1961. First edition. Saddle-stapled square 8vo in wrappers printed in red and black. With pages mostly printed in black and white, one in black and red. Unpaginated [24 pp.] Text in German. Issue no. 6 in the Rot series edited by Max Bense and Elisabeth Walther.....