1971-85, silkscreen/PVC, 46 x 45,5 cm, autographed Joseph Beuys and num. 154/3, unframed. - Literature: Cat. rais.: Schellmann 74. - One of the most influential German artists of the post-war time, studied at the Düsseldorf Academy under J. Ensling and E. Mataré, exhibited repeatedly at the Documenta. Mus.: New York, Chicago, Boston, Zürich, Dublin, Berlin, Düsseldorf, Stuttgart, London a. others.