SZT3008130: The display window of a leather shop in Leipzig, 1938 (b/w photo) / Bridgeman Images

SZT3008382: Sea captain Zeye with his officers and interpreters, 1897 (b/w photo) / Bridgeman Images

SZT3008459: Woman reading, 1937 (b/w photo) / Bridgeman Images

SZT3008461: Woman reading 1937 (b/w photo) / Bridgeman Images

SZT3008471: Man reading, 1933 (b/w photo) / Bridgeman Images

SZT3007620: Friedrich Christiansen honours the 1000th oversee passenger of the airship 'Hindenburg' (b/w photo) / Bridgeman Images

SZT3007625: Taking off of 'Graf Zeppelin II' , 1938 (b/w photo) / Bridgeman Images

SZT3007631: LZ 130 'Graf Zeppelin Il' over Friedrichshafen (b/w photo) / Bridgeman Images

SZT3007641: The steering cabin of the 'Graf Zeppelin ll', 1938 (b/w photo) / Bridgeman Images

SZT3007646: The 'Los Angeles' and the 'Graf Zeppelin' at the hangar (b/w photo) / Bridgeman Images

SZT3007657: Take-off of the airship LZ 127 'Graf Zeppelin' (b/w photo) / Bridgeman Images

SZT3007659: Blau gas bottles for the 'Graf Zeppelin' (b/w photo) / Bridgeman Images

SZT3007664: The airship LZ 127 'Graf Zeppelin' (b/w photo) / Bridgeman Images

SZT3007667: Ballast bags on the gondola of the airship 'Graf Zeppelin II' (b/w photo) / Bridgeman Images

SZT3007678: America's future airship fleet / Bridgeman Images

SZT3007683: The LZ 126 airship above Friedrichshafen and the Lake Constance (b/w photo) / Bridgeman Images

SZT3007705: Oil-powered locomotive, USA (b/w photo) / Bridgeman Images

SZT3007541: Adolf Hitler, Edmund Glaise von Horstenau and Franz Ritter von Epp, 1938 (b/w photo) / Bridgeman Images

SZT3007745: Caricature of the bike from the 19th century (b/w photo) / Bridgeman Images

SZT3007757: Opening of the bike paths in Grunewald, 1929 (b/w photo) / Bridgeman Images

SZT3007771: The LZ 127 'Graf Zeppelin' on its first transatlantic flight, 1928 (b/w photo) / Bridgeman Images

SZT3007776: Atlantic crossing of the airship LZ 127 'Graf Zeppelin', 1928 (b/w photo) / Bridgeman Images

SZT3007952: First German hospital in Jiaozhou (b/w photo) / Bridgeman Images

SZT3007955: Garrison parade ground in Qingdao, 1901 (b/w photo) / Bridgeman Images

SZT3007958: Parade in Qingdao, 1911 (b/w photo) / Bridgeman Images

SZT3007970: Maneuver in Qingdao, 1910 (b/w photo) / Bridgeman Images

SZT3007838: Destruction of paper money in 1892 (b/w photo) / Bridgeman Images

SZT3007843: Office of a private bank in 1934 (b/w photo) / Bridgeman Images

SZT3008758: Pope Leo XIII (b/w photo) / Bridgeman Images

SZT3008759: Pope Leo XIII in the garden (b/w photo) / Bridgeman Images

SZT3008763: Pope Leo XIII in a sedan chair on the way to Mass, 1900 (b/w photo) / Bridgeman Images

SZT3008790: Turks at Vienna, 1683 (b/w photo) / Bridgeman Images

SZT3008806: Military ceremony in the Prater, 1814 (b/w photo) / Bridgeman Images

SZT3007292: Wilhelm Zimmermann, Hugo Junkers and Johann Risticz after a duration flight record, 1928 (b/w photo) / Bridgeman Images

SZT3007301: Sudeten Germans fleeing, 1938 (b/w photo) / Bridgeman Images

SZT3007349: Members of the Chamber of Commerce in Krefeld, 1904 (b/w photo) / Bridgeman Images