Pastel. 18 x 14 cm. Lo. ri. sign. Olderock, lo. le. inscribed, matted and framed under glass, uninspected out of frame. - 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.