“…As Martina Dobbe has comprehensively shown, typology as "visual grammar" develops at a very early stage of the Bechers' collaboration, not long after Bernd Becher was still experimenting with collage as a combinatory form. 40 In their first solo exhibition in the Galerie Nohl in 1963 in Siegen, the couple already showed double rows of individual images, similar to their "Industriebauten 1830 - 1930" in 1967 (see Fig. 41).…”