1967. Polychrome cotton, woven. 72 x 122 cm. - Provenance: Acquired in 1971 at the Bonifatius-Galerie, Hamburg; since then privately owned. - Painter, stage designer, weaver and commercial artist. O. studied at the Hamburg school of applied arts under A. Kling and M. Brinckmann. He was member of 'Deutscher Werkbund'. He began with expressionist, cubistic, constructivist and Art Déco works, after World War II he turned to abstract paintings. Mus.: Bern (Kunstmuseum), Mönchengladbach a. others Lit.: Vollmer, Der Neue Rump, Wagner: M. O. - Ein Hamburger Expressionist, 1989.