1930–1940
Dr. Wolff & Tritschler OHG, 1933
Paul Wolff, 1930
Dr. Wolff & Tritschler OHG, 1936
Dr. Wolff & Tritschler OHG, 1930
Paul Wolff, 1945
Paul Wolff, 1934
Dr. Wolff & Tritschler OHG, 1941
Dr. Wolff & Tritschler OHG, 1940