1930–1940
Paul Wolff, 1935
Dr. Wolff & Tritschler OHG, 1935
Dr. Wolff & Tritschler OHG, 1930
Paul Wolff, 1930
Dr. Wolff & Tritschler OHG, 1942
Paul Wolff, 1927
Dr. Wolff & Tritschler OHG, 1940