Lithograph in colours, 70 x 50 cm, lo. ri. autographed and dat. Uecker 91. lo. le. num. 13/100 as well as blind stamp Erker-Presse St. Gallen, unframed. - Important German post war artist, well-known for using nails in his art. U. studied in Wismar, Berlin-Weißensee and Düsseldorf. 1961 he became a member of the group 'ZERO' and increasingly turned to kinetic light art. Also he designed several stage decorations and took part in Documenta III, IV and VII. U. was appointed professor at the Düsseldorf Academy until 1995. Mus.: Düsseldorf (Museum Kunstpalast), London (Courtauld Institute of Art), New York (Museum of Modern Art), Paris (Centre Pompidou) et al. Lit.: Brockhaus 'G. U. - Graphein' (2002), Ortheil 'G.U. - Wasser Veneziana. Aquarelle von G. U.' (2005) et. al.