Unknown. (page 474)

John Ross, British polar explorer and naval officer, 19th century Unknown

Thomas Edison's generator for electric light at his home at Menlo Park, New Jersey, USA, 1879 Unknown

Florence Nightingale watching a nurse at work, 1854 Unknown

Woman and boy drawing a corve containing 3-4 cwt of coal, Bolton, Lancashire, 1848 Unknown

Laying a Macadam road surface and compacting it with a steam road roller, Paris, c1900 Unknown

For Better or Worse, 1866 Unknown

Paris Observatory, France, 1740 Unknown

People made homeless by German bombing, Liverpool, World War II, 1941 Unknown

French troops on the road to the trenches, France, World War I, 1916 Unknown

Pulling a big gun with a twelve horse team and the help of the gun crew, France, World War I,... Unknown

Barbara Ayrton, British suffragette, campaigning on the Votes for Women bus, October 1909 Unknown

Statue of a girl scholar beside the door, Hamlet of Ratcliff Schools, Stepney, London, 1945 Unknown

WH Smith's bookstall at Waterloo Station, Lambeth, London, 1960 Unknown

Telephonists at the Fire Brigade Headquarters, Lambeth, London, 1940 Unknown

Boats at Limehouse Pier, Poplar, London, 1908 Unknown

Women's brass band, Cosway Street Evening Institute for Women, London, 1914 Unknown

Women using spinning wheels, Bethnal Green, London, 1908 Unknown

Firemen demonstrating motor steamer hoses, London Fire Brigade Headquarters, London, 1910 Unknown

Girls' Hebrew reading lesson, Jews' Free School, Stepney, London, 1908 Unknown

Testing gas pressure in street lighting, Westminster, London, 1910 Unknown

Nature class in the playground, Albion Street Girls School, Rotherhithe, London, 1908 Unknown

Female students painting still lifes, Hammersmith School of Arts and Crafts, London, 1910 Unknown

Manuscript Leaf with the Betrayal, from a Book of Hours, ca. 1500 Unknown

Detached section from scroll one from A Long Tale for an Autumn Night… ca. 1400 Unknown

Charles Frederick Mayer, ca. 1815-20 Unknown

Puriya Ragaputra: Page from the Dispersed 'Boston' Ragamala Series…, ca. 1760 Unknown

Liberty, Ca. 1800 Unknown

The Claremont, ca. 1855 Unknown

Taima Mandala, probably late 14th century Unknown

Virgin of Tenderness with the Saints (The Virgin Eleusa), Byzantine icon, 14th century Unknown

Tsar Alexander II of Russia, c1861-c1865(?) Unknown

Grand Duchess Vera Constantinovna of Russia, c1861-c1865(?) Unknown

Fyodor Fyodorevich Dostoyevsky, son of Russian author Fyodor Dostoyevsky, 1870s Unknown

Russian composer Dmitri Shostakovich, singer Maria Maksakova and writer Aleksey Tolstoy, 1943 Unknown

The upper trading rows in Red Square, Moscow, Russia, 1910s Unknown

Russian theatre directo Vsevolod Meyerhold and his wife, actress Zinaida Raikh, early 1920s Unknown