SZT3518657: Police is escorting the Iranian visitors in Berlin, 1967 (b/w photo) / Bridgeman Images

SZT3518675: Mounted police push back demonstrators in Berlin, 1967 (b/w photo) / Bridgeman Images

SZT3518678: Political activist Rudi Dutschke at the FU Berlin, 1967 (b/w photo) / Bridgeman Images

SZT3518665: The injured student Benno Ohnesorg in Berlin, 1967 (b/w photo) / Bridgeman Images

SZT3518395: Festival visitors in the Olympic Park in Munich, 1970 (b/w photo) / Bridgeman Images

SZT3518434: View of the stage at a rock festival in Munich, 1970 (b/w photo) / Bridgeman Images

SZT3518440: German secretary of state Egon Bahr in Iran, 1972 (b/w photo) / Bridgeman Images

SZT3518475: GERMAN Minister of Defence Helmut Schmidt during the Congress of the Socalist Party (b/w photo) / Bridgeman Images

SZT3518511: Queue at the harbour, Capri, 1957 (b/w photo) / Bridgeman Images

SZT3518547: Martino Pamado builds a new home on the outskirts of Alberobello. (b/w photo) / Bridgeman Images

SZT3518586: Italian “Gastarbeiter” in Wolfsburg, 1966 (b/w photo) / Bridgeman Images

SZT3518625: Willy Brandt at the SPD party congress in Bonn, 1971 (b/w photo) / Bridgeman Images

SZT3518649: Students at the university in Berlin, 1967 (b/w photo) / Bridgeman Images

SZT3518676: Police forces are using water canons in Berlin, 1967 (b/w photo) / Bridgeman Images

SZT3518701: King of Thailand Bhumibol ADULYADEJ with his wife SIRIKIT at their house Villa Vadhana near Lausanne (b/w photo) / Bridgeman Images

SZT3518713: King of Thailand Bhumibol ADULYADEJ during the visit of the German president Heinrich Lübke and his wife Wilhelmine (b/w photo) / Bridgeman Images

FAF3519004: Female Portrait, Italy, 1940-50 (b/w photo), Studio Villani (20th century) / Bridgeman Images

SZT3518714: King of Thailand Bhumibol ADULYADEJ with his wife SIRIKIT at the royal palace (b/w photo) / Bridgeman Images

THE3518888: View through the Rooftops to the Fields, 2010 (watercolour), Thewsey, Joan / Bridgeman Images

FAF3518999: Model posing with a camera, Italy, c.1960 (photo), Studio Villani (20th century) / Bridgeman Images

MCX3519279: Coming Home, Coxall, Margaret / Bridgeman Images

SZT3518721: Horst Janssen with Alfred Hentzen during the Venice Biennale, 1968 (b/w photo) / Bridgeman Images

SZT3518727: Protests against the planned Emergency Act in Berlin, 1968 (b/w photo) / Bridgeman Images

FAF3518997: Young woman photographed with a camera while taking a photograph, Italy, 1965-75 (photo), Studio Villani (20th century) / Bridgeman Images

GDK3519287: Bird of Prey, c.1962 (pencil on paper), Freud, Lucian (1922-2011) / Bridgeman Images

SZT3517649: Ilja Richter and the Koenig twins, 1970 (b/w photo) / Bridgeman Images

SZT3517652: Ilja Richter and the Koenig twins, 1970 (b/w photo) / Bridgeman Images

SZT3517655: The Spanish singer Raphael at the Munich-Riem Airport, 1977 (b/w photo) / Bridgeman Images

SZT3517664: The chocolate factory Imhoff in Bullay near Zell, 1954 (b/w photo) / Bridgeman Images

SZT3517688: Visit at the football player Gustl Starek at his residence in Munich, 1969 (b/w photo) / Bridgeman Images

SZT3517706: Hugh Hefner and Barbi Benton in an airport shuttle bus, 1970 (b/w photo) / Bridgeman Images

SZT3517715: Hugh Hefner gives an autograph to a police officer, 1970 (b/w photo) / Bridgeman Images

SZT3517730: Arrival of Hugh Hefner at the Munich-Riem airport, 1970 (b/w photo) / Bridgeman Images

SZT3517760: The Russian cross-country skier Valentina Tsaryova in Grindelwald, 1954 (b/w photo) / Bridgeman Images

SZT3517766: Cross-country skier at the start during the competition in Grindelwald, 1954 (b/w photo) / Bridgeman Images

SZT3517769: Skiers encourage their team colleagues, 1954 (b/w photo) / Bridgeman Images