John Singer Sargent -- American Portrait drawing of Mrs. George Swinton, 1906 Charcoal on white paper, "Mug" 61 x 47.6 cm (24 x 18 3/4 in.)

Cerano Study of a Franciscan Monk (Possibly Saint Francis) Italian, about 1600 Red chalk 8 3/16 x 6 7/8 in.

Albrecht Dürer, 1523 head as an assembly of geometrical planes

Jean-Baptiste Greuze French, Paris, about 1755 Red chalk 15 5/8 x 12 5/8 in.

Jean-Baptiste Greuze French, Red chalk 17 3/8 x 12 11/16 in.

Paul Rubens (Flemish, 1577–1640) Lady-In-Waiting to Infanta Isabella (Portrait of Clara Serena Rubens?), ca Black and red chalk, heightened with white chalk, pen and dark brown ink, on brownish paper 353 x 283 mm (13 3/4 x 11 1/8 in.)

Peter Paul Rubens (Flemish, 1577–1640) Nicolaas Rubens Wearing a Coral Necklace, ca Black and red chalk, heightened with white chalk, pen and dark brown ink, on brownish paper; 252 x 202 mm (9 15/16 x 7 15/16 in.)

Albrecht Dürer Head of an Angel, 1506 Pen and black ink, white heightening on blue (Venetian) paper 270 x 208 mm

John Stewart Whitney Houston

Werner Drewes Self-Portrait, 1947 brush and ink and ink wash on paper 15 5/8 x 13 3/8 in. (39.8 x 33.9 cm)