Anton Raphael Mengs, Holy Family with St. John the Baptist, mid-18th century, Pen and brown ink, squared for transfer in black chalk, The Metropolitan Museum of Art, New York. https://dartabase.art/cite/met/334925

Claude Joseph Vernet, Study of a Warship's Prow with British Warships and Naples Harbor Beyond, c. 1748, Pen and iron gall ink, with brush and dark gray, light gray and brownish gray wash, over black chalk, on ivory laid paper, laid down on ivory laid paper, Art Institute of Chicago, Chicago. https://dartabase.art/cite/aic/207321

Anton Raphael Mengs, Seated Nude Male, n.d., Black chalk, heightening with white, brown wash (?), on gray-brown paper, The Metropolitan Museum of Art, New York. https://dartabase.art/cite/met/334926

Christian Wilhelm Ernst Dietrich, Saint Francis Reading, 1747, Red chalk, The Metropolitan Museum of Art, New York. https://dartabase.art/cite/met/334802

François Boucher, Academic Study of a Reclining Male Nude, c. 1750, Black chalk, with stumping and touches of red chalk, heightened with white chalk, on cream laid paper, laid down on cream laid paper, Art Institute of Chicago, Chicago. https://dartabase.art/cite/aic/196175

Jean-Baptiste-Pierre Le Brun, Monks in a Cathedral, 1748, pen and brown ink with brown wash and white heightening over graphite, National Gallery of Art, Washington. https://dartabase.art/cite/nga/8461