38 It can even be derived from the book of the Van Gogh Museum “Van Gogh’s Studio Practice” an assignment in the period 1889-1890. The primer in my painting has the same composition as that of a roll of canvas supplied by Tasset et Lhôte Van Gogh around 1889-1890. Van Gogh received from Tasset et Lhôte 5 and 10 meter rolls of canvases, each with a different primer. In the book of VGM the primers are described down to the smallest pigment, thus a comparison became possible. The established forgery theory is thus refuted as a whole, due to the fact that Van Gogh was not forged in the period 1889-1890 and certainly not on canvases from this address. Van Gogh preferred canvases from Tasset et Lhôte from Paris due to the high quality. Prominent contemporaries such as Edgar Degas, Paul Signac and Alfred Sisley were also customers of this supplier. From Van Gogh’s phase in Arles, he ordered the canvases, except at the merchant Tanguy, exclusively at Tasset et Lhôte. The letters tell how the request for paint materials increased, adressed to his brother Theo, who organized it. The canvas was supplied by weavers, the art lay in the primer. Van Gogh writes that the primer from Tasset et Lhôte has better accepted the thicker paint application and is finer. This probably has to do with the fact that the primer of the paint does not remove the moisture too quickly. The same quality criterion applied to the pigments, the colors of Tasset et Lhôte. The basic materials and the processing of the colors of Tasset et Lhôte is qualitatively higher. The cobalt blue e.g. had a smaller share of iron. As a result, there is less black discoloration and the blue appears more intense and stronger. Van Gogh describes the visual difference in his letters. Incidentally, all the pigments in my painting are suitable for Van Gogh, which also had to be confirmed by the VGM. The colors themselves are lightened with barium. Taking barium as a filler is uncommon during that time, but was typical of Van Gogh. There is a precise breakdown of the parts of the Jägers lab, which in turn are similar to those used in Van Gogh’s time.