Hippolyte Flandrin, Melchizedek Presenting Abraham with Bread and Wine, 1835–64, Graphite, brush and gray wash; framing lines in pen and black ink, The Metropolitan Museum of Art, New York. https://dartabase.art/cite/met/334626

Jean Auguste Dominique Ingres, Madame Désiré Raoul-Rochette, 1830, graphite on cream wove paper, Cleveland Museum of Art, Cleveland. https://dartabase.art/cite/cleveland/109295

Jean Auguste Dominique Ingres, Antiochus and Stratonice, c. 1838, oil on linen, Cleveland Museum of Art, Cleveland. https://dartabase.art/cite/cleveland/142298

Hippolyte Flandrin, Nächtlicher Blick auf Rom, 1836, Aquarell über Bleistift auf altweißem rauem Velinpapier, Städel Museum, Frankfurt am Main. https://dartabase.art/cite/staedel/18636

Jean Auguste Dominique Ingres, The Kaunitz Sisters (Leopoldine, Caroline, and Ferdinandine), 1818, Graphite, The Metropolitan Museum of Art, New York. https://dartabase.art/cite/met/334710

Giovanni Battista Piranesi, Title Plate, published 1749/1750, etching, engraving, sulphur tint or open bite, National Gallery of Art, Washington. https://dartabase.art/cite/nga/782