1930–1940
Paul Wolff, 1930
Dr. Wolff & Tritschler OHG, 1935
Dr. Wolff & Tritschler OHG, 1931
Dr. Wolff & Tritschler OHG, 1940
Paul Wolff, 1942
Dr. Wolff & Tritschler OHG, 1930
Paul Wolff, 1934