1939–1947
Dr. Wolff & Tritschler OHG, 1937
Dr. Wolff & Tritschler OHG, 1930
Paul Wolff, 1930
Paul Wolff, 1940
Dr. Wolff & Tritschler OHG, 1945
Dr. Wolff & Tritschler OHG, 1942
Dr. Wolff & Tritschler OHG, 1935