Hermann Rupf was Kahnweiler’s first collector at his gallery in Paris. In 1907 he acquired works by the Fauves – Friesz, Derain, and Vlaminck. Together with the gallery owner, Rupf visited the young Picasso, returning with two large-scale works on paper. Until the outbreak of World War I in 1914, Hermann Rupf continued to add important Cubist works by Braque and Picasso to his collection. These paintings are now among the icons of Cubism.