1930–1940
Paul Wolff, 1930
Dr. Wolff & Tritschler OHG, 1961
Dr. Wolff & Tritschler OHG, 1937
Dr. Wolff & Tritschler OHG, 1931
Paul Wolff, 1934
Paul Wolff, 1935
Paul Wolff, 1933
Dr. Wolff & Tritschler OHG, 1930