Luigi Colani, "YLEM"
1971, unsigned, portfolio, loose sheets in a printed red plastic case with carrying handle, illustrations of designs, sketches, and texts on the topics of humanity, living, society, communication, architecture, the subaquatic, transport and traffic, cars, and flying, the term ylem stands for a primary substance or primordial material from which matter has developed, good age-appropriate condition, case with signs of wear, one plastic hinge broken, not collated, Edizione Internazionale Colani / Bertelsmann Sachbuchverlag, overall dimensions 40 x 31 x 3.5 cm (HxWxD)