PFH2642408: Russia / Soviet Union: 'Productive Propaganda', Vladimir Lebedev (1891-1967), c. 1920 / Bridgeman Images

PFH2642430: Russia / Soviet Union: A British ship in St Petersburg Harbour, Vladimir Lebedev (1891-1967), c. 1920 / Bridgeman Images

MAA2956906: Study for 'Her First Born, Horsham Churchyard (Funeral of the First Born)', 1874 (w/c on paper), Holl, Frank (1845-88) / Bridgeman Images

PFH2642414: Russia / Soviet Union: 'One Must Work, the Rifle is Right Here', Vladimir Lebedev (1891-1967), c. 1920, Lebedev, Vladimir Vasilevic (1891-1967) / Bridgeman Images

PFH2642415: Russia / Soviet Union: 'Against White Militarism', Vladimir Lebedev (1891-1967), c. 1920 / Bridgeman Images

PFH2642419: Russia / Soviet Union: 'A Bourgeois Tearing His Hair Because of the Second Meeting of the International Congress', Vladimir Lebedev (1891-1967), c. 1920 / Bridgeman Images

PFH2642426: Russia / Soviet Union: 'A Woman Worker', Vladimir Lebedev (1891-1967), c. 1920 / Bridgeman Images

HRP5246078: Queen Victoria at the Tomb of Napoleon, 24 August 1855 / Bridgeman Images

PFH2642416: Russia / Soviet Union: 'Workers Must Unionize', c.1920 (litho), Lebedev, Vladimir Vasilevic (1891-1967) / Bridgeman Images

PFH2642418: Russia / Soviet Union: 'A Worker Controlling Nationalised Enterprises', Vladimir Lebedev (1891-1967), c. 1920 / Bridgeman Images

XLF3784814: Advertisement for Hungary as tourist destination / Bridgeman Images

PIX4642723: View of debris in orbit around the Earth - Graphic computer of objects around the earth - View of debris in low orbit and geostationary orbit (35,785 km) around the Earth, from then a genere point above the north pole. Approximately 11,000 objects over 10 cm have been identified. Most of these debris is in low orbit. The number of debris between 10 cm and 1 cm in diameter, greater than 100,000; particles less than 1 cm must exceed 10 million. This image is generated from a vantage point above the north pole, showing the concentrations of objects in Low Earth Orbit and in the geosynchronous region. Approximately 11,000 objects larger than 10 cm are known to exist. The estimated population of particles between 1 and 10 cm in diameter is greater than 100,000. The number of particles smaller than 1 cm probably exceeds tens of millions / Bridgeman Images

PIX4642695: Graphic computer of objects around the earth - View of debris in geostationary orbit (35,785 km) around the Earth. Approximately 11,000 objects over 10 cm have been identified. Most of these debris is in low orbit. The number of debris between 10 cm and 1 cm in diameter, greater than 100,000; particles less than 1 cm must exceed 10 million. The GEO images are images generated from a distant oblique vantage point to provide a good view of the object population in the geosynchronous region (around 35,785 km altitude). Note the larger population of objects over the northern hemisphere is due mostly to Russian objects in high - inclination, high - eccentricity orbits. Approximately 11,000 objects larger than 10 cm are known to exist. The estimated population of particles between 1 and 10 cm in diameter is greater than 100,000. The number of particles smaller than 1 cm probably exceeds tens of millions / Bridgeman Images

LBI6340713: Seville, 1914 (litho), Steiner-Prag, Hugo (1880-1945) / Bridgeman Images

NAM5919926: The Attack on Cronje’s Force at Vedute Drift near Paardeberg, 1900 (oil on canvas), Giles, Godfrey Douglas (1857-1941) / Bridgeman Images

MPX5141360: LLoyds Bank, Baker Street, September 1971 / Bridgeman Images

NAM5925037: Patient Heroes, a Royal Horse Artillery Gun Team in action, 1882 circa (oil on canvas), Butler, Lady (Elizabeth Southerden Thompson) (1846-1933) / Bridgeman Images

PIX4616544: Glaciers under Martian crateres - Buried glaciers on Mars - Computer reconstructed views of three Martian crateres in the Hellas region that house glaciers. The images show the crateres as they appear today with a layer of Martian soil covering the ice with water and, on the right, the glaciers updated according to radar measurements obtained by the Mars Reconnaissance Orbiter probe (MRO). These glaciers would have a thickness of 250 to 450 meters. Each image covers 20 km wide. This computer graphic image shows three craters in the eastern Hellas region of Mars containing concealed glaciers detected by radar. The images shows how the surface looks today with the ice covered with a layer of Martian soil and what the ice may look like underneath. The image was created using image data from the Context Camera on the Mars Reconnaissance Orbiter (MRO) spacecraft combined with results from the SHARAD radar sounder on MRO and HRSC digital elevation map from the Mars Express spacecraft. The color of the Martian surface and ice was estimated from MRO HiRise color images of other Martian craters and the polar ice caps. The buried ice in these craters as measured by SHARAD is ~ 250 meter thick on the upper crater and ~ 300 and 450 meters on the middle and lower levels respectively. Each image is 20 km (12.8 mi.) across and extends to 50 km (32 mi) in the distance. Recent measurements from the Mars Reconnaissance Orbiter SHARAD radar sounder have detected large amounts of water ice in such deposits over widespread areas, arguing for the flow of glacial - like structures on Mars in the relatively recent geologic past. This suggests that snow and ice accumulated on higher topography, flowed downhill and is now protected from sublimation by a layer of rock debris and dust. Furrows and ridges on the surface were caused by deforming ice / Bridgeman Images

FIA5409565: Muscovite ambassadors to the Empire Diete has rawed, July 18, 1576, 1576-1606 (watercolour on paper), Unknown Artist, (17th century) / Bridgeman Images

FIA5409605: Christ and his disciples in the Garden of Gethsemane, c.1634 (watercolour on paper), Rembrandt Harmensz. van Rijn (1606-69) / Bridgeman Images

FIA5403503: Advertising Poster For The Glass And, c.1921-23 (chromolitho), Anonymous / Bridgeman Images

FIA5404963: In front of the mirror - Before the Mirror, 1913 (gouache on paper), Schiele, Egon (1890-1918) / Bridgeman Images

FIA5405425: Poster for the theatre play The flea by E. Zamyatin, 1925 (lithograph), Kustodiev, Boris Mikhailovich (1878-1927) / Bridgeman Images

FIA5405757: The Third Partition Of Poland, 1795 (etching, watercolour), Thomson, John (1778-1840) / Bridgeman Images

FIA5405438: Movie Poster City Lights (the Lights of the City) By Charlie Chaplin, 1936 (colour lithograph), Vasilyev, Anatoli (1917-1994) / Bridgeman Images

FIA5410058: Ladies Fashion, 1840s (watercolour on paper), Sadovnikov, Vasili Semenovich (1800-79) / Bridgeman Images

FIA5409433: Equestrian Portrait of Nicholas II of Russia, 1896 (colour lithograph), Bakmanson, Hugo Karlovich (1860-1953) / Bridgeman Images

FIA5409451: Equestrian Portrait of Nicholas II of Russia, 1896 (colour lithograph), Bakmanson, Hugo Karlovich (1860-1953) / Bridgeman Images

FIA5409439: Equestrian Portrait of Nicholas II of Russia, 1896 (colour lithograph), Bakmanson, Hugo Karlovich (1860-1953) / Bridgeman Images

FIA5409448: Equestrian Portrait of Nicholas II of Russia, 1896 (colour lithograph), Bakmanson, Hugo Karlovich (1860-1953) / Bridgeman Images

FIA5409449: Equestrian Portrait of Nicholas II of Russia, 1896 (colour lithograph), Bakmanson, Hugo Karlovich (1860-1953) / Bridgeman Images

FIA5405772: Before A Tavern, 1842-45 (lithograph, watercolour), Zhukovsky, Rudolf Kasimirovich (1814-1886) / Bridgeman Images

FIA5409441: Equestrian Portrait of Nicholas II of Russia, 1896 (colour lithograph), Bakmanson, Hugo Karlovich (1860-1953) / Bridgeman Images

FIA5409431: Equestrian Portrait of Nicholas II of Russia, 1896 (colour lithograph), Bakmanson, Hugo Karlovich (1860-1953) / Bridgeman Images

FIA5409443: Equestrian Portrait of Nicholas II of Russia, 1896 (colour lithograph), Bakmanson, Hugo Karlovich (1860-1953) / Bridgeman Images

FIA5407275: Set design for the opera ernani, 19th century (watercolour on paper), Conti, M. (1810-1886) / Bridgeman Images