1935
Paul Wolff, 1935
Dr. Wolff & Tritschler OHG, 1934
Paul Wolff, 1930
Dr. Wolff & Tritschler OHG, 1942
Dr. Wolff & Tritschler OHG, 1935
Dr. Wolff & Tritschler OHG, 1930
Dr. Wolff & Tritschler OHG, 1938