Vincent van Gogh, Bauernhaus in Nuenen, 1885, Öl auf Leinwand, Städel Museum, Frankfurt am Main. https://dartabase.art/cite/staedel/1423 Francis Seymour Haden, Self-Portrait at the Easel, 1880, etching on laid paper, National Gallery of Art, Washington. https://dartabase.art/cite/nga/7391 Francis Seymour Haden, Breaking Up of the Agamemnon (The Second Plate), 1886, etching, National Gallery of Art, Washington. https://dartabase.art/cite/nga/7652 Frederick G. Smith, Earth, from the series The Four Elements, c. 1888–89, Pen and ink, brush and wash over graphite, Minneapolis Institute of Art, Minneapolis. https://dartabase.art/cite/mia/10.2 Vincent van Gogh, The Large Plane Trees (Road Menders at Saint-Rémy), 1889, oil on fabric, Cleveland Museum of Art, Cleveland. https://dartabase.art/cite/cleveland/125249 Frederick G. Smith, Air, from the series The Four Elements, c.1888–89, Pen and ink, brush and wash over graphite, Minneapolis Institute of Art, Minneapolis. https://dartabase.art/cite/mia/10.1 Francis Seymour Haden, Encombe Woods (No.1), 1881, etching, retouched with pencil (crayon?), National Gallery of Art, Washington. https://dartabase.art/cite/nga/7657 Vincent van Gogh, Planteuse de pommes de terre, 1885, Schwarze Kreide und Kohle, gewischt, radiert und fixiert, auf geripptem Büttenpapier, Städel Museum, Frankfurt am Main. https://dartabase.art/cite/staedel/34500 Frederick G. Smith, Water, from the series The Four Elements, c. 1888–89, Pen and ink, brush and wash over graphite, Minneapolis Institute of Art, Minneapolis. https://dartabase.art/cite/mia/10.4 Vincent van Gogh, Terrace and Observation Deck at the Moulin de Blute-Fin, Montmartre, Early 1887, Oil on canvas, mounted on pressboard, Art Institute of Chicago, Chicago. https://dartabase.art/cite/aic/27954 Walter Richard Sickert, Le Marché aux Bestiaux, Dieppe, c. 1886, Oil on panel, Harvard Art Museums, Cambridge. https://dartabase.art/cite/harvard/5211 Francis Seymour Haden, A Lancashire River, 1881, etching and drypoint, National Gallery of Art, Washington. https://dartabase.art/cite/nga/7653 Frederick G. Smith, Fire, from the series The Four Elements, c. 1888–89, Pen and ink, brush and wash over graphite, Minneapolis Institute of Art, Minneapolis. https://dartabase.art/cite/mia/10.3 Francis Seymour Haden, Harlech (No.2), 1880, mezzotint with etching and drypoint (copper) in brown-black, National Gallery of Art, Washington. https://dartabase.art/cite/nga/7658 Vincent van Gogh, Two Poplars in the Alpilles near Saint-Rémy, 1889, oil on fabric, Cleveland Museum of Art, Cleveland. https://dartabase.art/cite/cleveland/135310 George Louis du Maurier, "Nincompoopiana", 1880, Wood engraving, Harvard Art Museums, Cambridge. https://dartabase.art/cite/harvard/4727 Francis Seymour Haden, The Test at Longparish, 1882, etching with drypoint in dark brown, National Gallery of Art, Washington. https://dartabase.art/cite/nga/7656 Francis Seymour Haden, Self-Portrait at the Easel, 1880/1886, etching with drypoint on laid paper [cancellation proof], National Gallery of Art, Washington. https://dartabase.art/cite/nga/7645