Childe Hassam, Portsmouth Doorway, 1916, etching and drypoint in black, National Gallery of Art, Washington. https://dartabase.art/cite/nga/1082

Lovis Corinth, The First Human Beings (Die ersten Menschen), (c. 1919), Lithographic crayon and pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37425

Claude Monet, Water Lilies (Agapanthus), c. 1915–26, oil on canvas, Cleveland Museum of Art, Cleveland. https://dartabase.art/cite/cleveland/136510

Lovis Corinth, Wolfgang Gurlitt, (1917), Crayon on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37434

Lovis Corinth, Woman Carrying a Basket (recto); Untitled (Study for Portrait of Frau Luther) (verso), c. 1910, Pencil on paper (recto); Pencil on paper (verso), The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37438