Ferdinand Bol, Rembrandt van Rijn, c. 1640, chalk, pen and ink, brush and wash on sheet trimmed with gold paper, National Gallery of Art, Washington. https://dartabase.art/cite/nga/4647

Ferdinand Bol, The Astrologer, 1616, etching, National Gallery of Art, Washington. https://dartabase.art/cite/nga/4648

Ferdinand Bol, Bildnis eines jungen Mannes, 1644, Öl auf Leinwand, Städel Museum, Frankfurt am Main. https://dartabase.art/cite/staedel/912

Ferdinand Bol, Portrait of an Officer, 1645, etching, National Gallery of Art, Washington. https://dartabase.art/cite/nga/4646

Ferdinand Bol, The Woman with the Pear, 1651, etching, National Gallery of Art, Washington. https://dartabase.art/cite/nga/4645