Hugo Schmölz-Werner Mantz : Wohnbauten der 1920er- und 1930er-Jahre in Köln = Residential Buildings in Cologne in the 1920s and 1930s

One of the speciality areas of photographer Hugo Schmölz (1879 Sonthofen – 1938 Cologne) and Werner Mantz (1901 Cologne – 1983 Eijsden) was the technically very demanding field of architectural photography. The outstanding shots of these two photographers, which followed formal and aesthetically clear principles, were responsible for their success. As visual mediators and interpreters of contemporary buildings, they sought to combine the reality of what they saw with the vision of their clients. The images the two photographers produced as a way of documenting and archiving the building projects were intended to be true to reality, contemporary and promotionally effective.
Source; photography-now.com