Jakob Binck, Portrait of Reinneir, 1525, Engraving and etching in black on buff laid paper, Art Institute of Chicago, Chicago. https://dartabase.art/cite/aic/60948

Albrecht Dürer, Philip Melanchthon, 1526, Engraving in black on ivory laid paper, Art Institute of Chicago, Chicago. https://dartabase.art/cite/aic/4115

Albrecht Dürer, Ulrich Varnbüler, 1522, printed c. 1620, Woodcut in black on ivory laid paper with added brown and sepia tone blocks, Art Institute of Chicago, Chicago. https://dartabase.art/cite/aic/36035

Andrea del Sarto, The Sacrifice of Isaac, c. 1527, oil on wood, Cleveland Museum of Art, Cleveland. https://dartabase.art/cite/cleveland/117032

Albrecht Dürer, Erasmus of Rotterdam, 1526, Engraving in black on ivory laid paper, Art Institute of Chicago, Chicago. https://dartabase.art/cite/aic/4118