Oskar Hermann Werner Hadank (1889–1965) was a German graphic designer. Hadank studied graphic design under Emil Doepler at the Vereinigte Staatsschulen für freie und angewandte Kunst Berlin (United State School for the Fine and Applied Arts) from 1905 to 1910. He then became a freelance designer, producing mostly packaging designs, labels, and trademarks for companies such as Audi and Pelikan. In 1919, Hadank was among the founding members of Germany's first professional organization for graphic designers, the BDG. Appointed professor in the same year, Hadank was in charge of the advertising design department at the Vereinigte Staatsschulen für freie und angewandte Kunst Berlin until 1945. See some of his work here and here. Learn more about him here. He designed Ornata for Klingspor in 1943.