Lithograph in colours, 59,5 x 41,5 cm, lo. ri. autographed a. dat. Uecker 92, lo. le. num. 106/300 as well as blind stamp of 'Erker-Presse St. Gallen', framed under glass, uninspected out of frame. - 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.