画廊展览 机构展览 Bernd & Hilla Becher Kies Sand Basalt Venloer Straße 21, Cologne, 11 January – 9 February 1991 展览现场 List Index Bernd & Hilla Becher Kies Sand Basalt Venloer Straße 21, Cologne, 11 January – 9 February 1991 Installation view, 1991 Installation view, 1991 Installation view, 1991 Installation view, 1991 Installation view, 1991 Installation view, 1991