1930–1940
Dr. Wolff & Tritschler OHG, 1930
Paul Wolff, 1930
Paul Wolff, 1935
Paul Wolff, 1940
Paul Wolff, 1937
Paul Wolff, 1931
Paul Wolff, 1936
Dr. Wolff & Tritschler OHG, 1935
Paul Wolff, 1945
Dr. Wolff & Tritschler OHG, 1942