Jean-François Millet, First Steps, c. 1859–66, black chalk and pastel on beige laid paper, Cleveland Museum of Art, Cleveland. https://dartabase.art/cite/cleveland/138515

Théodule Ribot, War Scene (A Female Casualty), c. 1870–72, Pen and black ink, brush and gray wash, with touches of red ink, The Metropolitan Museum of Art, New York. https://dartabase.art/cite/met/334634

Henri Fantin-Latour, Siegfried and the Rhine Maidens, 1836, black crayon on paperboard, National Gallery of Art, Washington. https://dartabase.art/cite/nga/6847

Jean-François Millet, The Newborn, 1814, charcoal on blue laid paper, National Gallery of Art, Washington. https://dartabase.art/cite/nga/9190

Jean-François Millet, The Sower, 1814, chalk on blue laid paper, National Gallery of Art, Washington. https://dartabase.art/cite/nga/9189