Otto Piene

Stunning unidentified artists' book. Printed in colour on 70s photographic Xerox paper. 29.5 x 21 cm, 13 pp. Stapled on top. Seems to be a draft for a publication or poster, with felt tip written printing instructions on all pages.
Stamp on back with the selling price of 13 DM. Hard to read text mentions Museum Am Ostwall Dortmund. The cover image resembles the poster made for Piene's exhibition Fire Flower Power, at this venue in 1967. (see lot 32 in this auction)