Albrecht Dürer, Melencolia I, 1514, engraving, Cleveland Museum of Art, Cleveland. https://dartabase.art/cite/cleveland/108501

Henri de Toulouse-Lautrec, The Laundress, 1888, black and gray wash with white paint, scratched away in places, on gray cardboard prepared with white ground, Cleveland Museum of Art, Cleveland. https://dartabase.art/cite/cleveland/129221