Delftsche Slaolie (Delft Salad Oil) by Johannes Theodorus Toorop (Dutch, 1894), included in the Art Nouveau exhibit. Museum of Fine Arts, Boston Aug. 7, 2013 Facebook Twitter Reddit Print Delftsche Slaolie (Delft Salad Oil) by Johannes Theodorus Toorop (Dutch, 1894), included in the Art Nouveau exhibit. Museum of Fine Arts, Boston