Sir Hugh Casson PRA, 'Elephant and Rhinoceros Pavilion, London Zoo'(detail), c.1971. © Royal Academy of Arts, London.

Sidney Nolan, 'Ned Kelly' (detail), 1946. Enamel paint on composition board. 90.8 x 121.5 cm. National Gallery of Australia, Canberra. Gift of Sunday Reed, 1977.

Sydney Lee, 'The Sleeping Square' (detail), 1928. Aquatint, mezzotint and roulette. Private collection. © estate of the artist.

George Bellows, 'Stag at Sharkey’s' (detail), 1909. Oil on canvas, 92 x 112.6 cm. The Cleveland Museum of Art. Hinman B. Hurlbut Collection. Photo © The Cleveland Museum of Art.