Antony Gormley, Connect, 2014, carbon and casein on paper.

Hendrick Goltzius, Three studies of a man’s head (Recto), 1587, silverpoint and possibly leadpoint on cream prepared vellum.

Detail of Henri Matisse, Odalisque au fauteuil noir, 1942.

Hiromu Kira, The thinker, circa 1930, vintage print.

Lord Leighton (Frederic Leighton), Flaming June, 1895, pencil and white chalk drawing.

Marcel Duchamp, Roue de bicyclette (Bicycle wheel), 1913 – 1960 – 1976.

Mark Grotjahn, Untitled (Indian #4 face 45,49, 2014, oil on cardboard mounted on linen.

Peter Doig, Untitled, 2014, oil on paper.

Sigmar Polke, Untitled, 1990, from the Silver Painting-series.