By 1956, a reading room, print room, a museum restaurant and garden, and a new auditorium for film screenings and musical performances were added.[11] Sandberg acquired a group of works by Russian artist Kazimir Malevich in 1958. In the same year, Sandberg began acquiring photography for the museum's collection; the Stedelijk was the first western European museum for modern art to collect photography. The collection includes seminal photographers of both the Dutch and international avant-garde in the interbellum period (such as Erwin Blumenfeld, László Moholy-Nagy and Man Ray), an extensive selection of post-war Dutch photographers (including Eva Besnyö, Ed van der Elsken and Cas Oorthuys), artist portraits, photojournalism, and autonomous fine art photography from the 1970s onward.[11]