1930–1935
Paul Wolff, 1939
Dr. Wolff & Tritschler OHG, 1934
Dr. Wolff & Tritschler OHG, 1961
Dr. Wolff & Tritschler OHG, 1935
Paul Wolff, 1930
Paul Wolff, 1934
Paul Wolff, 1937
Dr. Wolff & Tritschler OHG, 1930
Paul Wolff, 1935