画廊展览 机构展览 Werner Büttner Venloer Straße 21, Cologne, 4 March – 1 April 1989 展览现场 List Index Werner Büttner Venloer Straße 21, Cologne, 4 March – 1 April 1989 Installation view, 1989 Installation view, 1989 Installation view, 1989