This first comprehensive publication on Dr. Paul Wolff (1887-1951) and Alfred Tritschler (1905-1970) rediscovers two of the most renowned German photographers from around 1930. Wolff and Tritschler are still recognized today as pioneers of the Leica, as forerunners of a vibrant style in illustration photography and reportage. Additionally, their estimated body of work, comprising 700,000 images, reflects several chapters of German history: from the cultural awakening during the Weimar Republic to the Third Reich and the Second World War, during which significant parts of the Wolff archive were also destroyed. Aesthetically, they navigated between convention and New Objectivity, regional style and New Vision. There is hardly a topic that Wolff and Tritschler did not cover. Their photographic work has significantly shaped our perception of the old or "New Frankfurt.".