158. Wallraf-Richartz Museum Köln "Art of the Sixties".
Gert von Der Osten and Horst Keller, 5th revised edition, Walter König, Köln 1971. Bound with Plexiglas and metal bolts. Four separate metal wall-mounts included. 30 x 24,5 cm.
Wear, minor defects.
- Department: Prints
- Auction: 23 May 2012, lot 158
- Viewing: 15 – 22 May 2012