Anonymous Artist, Judith with the Head of Holofernes, c. 1480, pen and dark brown ink with black chalk and white heightening on olive-brown prepared paper laid down on canvas, National Gallery of Art, Washington. https://dartabase.art/cite/nga/319

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

Anonymous Artist, Christ before Pilate, 1606, brush and brown ink on brown paper, National Gallery of Art, Washington. https://dartabase.art/cite/nga/1841

Anonymous Artist, An Oriental, 1606, pen and brown ink with brush and brown-black ink on laid paper, National Gallery of Art, Washington. https://dartabase.art/cite/nga/1851

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