Omar Rayo, Free-Fall, 1966, Charcoal and ink on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37080

Arent van Bolten, A Fantastic Creature, late 16th–early 17th century, Pen and brown ink, brush and brown wash, over black chalk; framing lines in pen and brown ink, The Metropolitan Museum of Art, New York. https://dartabase.art/cite/met/334690

Fernando Botero, Woman in a Bathtub, 1974, Pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/34215

Fernando Botero, Painter of Still Lifes, 1975, Pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37120

Pieter de Jode I, Neptune in his Chariot, late 16th–mid 17th century, Pen and brown ink, brown wash, over traces of black chalk, The Metropolitan Museum of Art, New York. https://dartabase.art/cite/met/334883