Never before have all the everyday objects depicted by Vincent been accurately identified. Recent research by art historian Alexandra van Dongen, curator of historical design at Museum Boijmans Van Beuningen, shows that a precise identification of Vincent's objects can sometimes shed new light on the possible place of manufacture and the dating of his work. For example, a very simple earthenware saucepan that appears on Still life with potatoes comes from the southern French pottery center Valuaties. It was previously assumed that Vincent painted this still life in Nuenen, but identification of the saucepan and technical research into the linen canvas indicate that Paris 1886 was the place and time of its manufacture.