Yi Taek-gyun, Books and Scholars’ Accoutrements, late 1800s, ten-panel folding screen; ink and color on silk, Cleveland Museum of Art, Cleveland. https://dartabase.art/cite/cleveland/169545

Carl Müller, Holy Family, 1872, Black and white chalk on gray paper, The Metropolitan Museum of Art, New York. https://dartabase.art/cite/met/334933