1930–1943
Paul Wolff, 1934
Dr. Wolff & Tritschler OHG, 1930
Dr. Wolff & Tritschler OHG, 1945
Dr. Wolff & Tritschler OHG, 1933
Dr. Wolff & Tritschler OHG, 1936
Paul Wolff, 1940
Paul Wolff, 1930
Paul Wolff, 1947