Adolph von Menzel, Head of a Bearded Man, 1884, Graphite, The Metropolitan Museum of Art, New York. https://dartabase.art/cite/met/334928

Adolph von Menzel, Doctor and Patient, 1899, Graphite, The Metropolitan Museum of Art, New York. https://dartabase.art/cite/met/334927

Marlene Dumas, Magdalena, 1996, Ink on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/36055

William Kentridge, Seated Couple (Back to Back), 1998, Charcoal on pasted book pages on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37480

Adolph von Menzel, Woman with a Crushed Velvet Hat, 1894, Graphite, The Metropolitan Museum of Art, New York. https://dartabase.art/cite/met/334929

William Kentridge, Drawing from Stereoscope, (1998–99), Charcoal, pastel, and colored pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/36774