SZT2991076: Dr Robert Koch, German bacteriologist (b/w photo) / Bridgeman Images

SZT2991079: Residence of Robert Koch in Wollnstein, 1943 (b/w photo) / Bridgeman Images

SZT2991082: Bedouin on horseback, 1931 (b/w photo) / Bridgeman Images

SZT2991106: German officers discuss operation on the Eastern Front, 1943 (b/w photo) / Bridgeman Images

SZT2990879: Arno Breker with Gerhart Hauptmann, 1942 (b/w photo) / Bridgeman Images

SZT2991109: German Armored Infantrymen Near Kursk, 1943 (b/w photo) / Bridgeman Images

SZT2990900: Red Army tanks in Moscow, 1940 (b/w photo) / Bridgeman Images

SZT2990909: Emperor Franz Joseph I in his parade car, 1912 (b/w photo) / Bridgeman Images

SZT2990924: Exploded rocket car, 1928 (b/w photo) / Bridgeman Images

SZT2990966: Funeral of Friedrich Ebert in the cemetery in Heidelberg, 1925 (b/w photo) / Bridgeman Images

SZT2990999: German soldiers supervise the harvest, 1942 (b/w photo) / Bridgeman Images

SZT2991020: Heinz Guderian during the French campaign, 1940 (b/w photo) / Bridgeman Images

SZT2991032: Oat supplies on the Eastern Front, 1942 (b/w photo) / Bridgeman Images

SZT2991053: Lord Louis Mountbatten at the wedding with Edwina Ashley, 1922 (b/w photo) / Bridgeman Images

SZT2991101: Louis Bleriot and his wife, 1910 (b/w photo) / Bridgeman Images

SZT2991155: Georges Clemenceau (b/w photo) / Bridgeman Images

SZT2991161: Woman on the beach, 1939 (b/w photo) / Bridgeman Images

SZT2990270: Gustav Stresemann and Frans Beelarts van Blokland in The Hague (b/w photo) / Bridgeman Images

SZT2990276: Paul von Hindenburg and Hermann Mueller at the funeral service for Gustav Stresemann, 1929 (b/w photo) / Bridgeman Images

SZT2990279: Wilhelm Marx and Gustav Stresemann receiving Charles Levine and Clarence Chamberlin 1927 (b/w photo) / Bridgeman Images

SZT2990285: Election poster of the DVP (b/w photo) / Bridgeman Images

SZT2990291: Gustav Stresemann, Paul Loebe and Friedrich Ebert in front of the Reichstag, 1924 (b/w photo) / Bridgeman Images

SZT2990300: Aircraft and dirigible, 1911 (b/w photo) / Bridgeman Images

SZT2990306: German panzer III E in France, 1940 (b/w photo) / Bridgeman Images

SZT2990318: German Panzer III crosses the Aisne, 1940 (b/w photo) / Bridgeman Images

SZT2990321: Still from the Movie 'Victory in the West,' 1940 (b/w photo) / Bridgeman Images

SZT2990327: Ludwig III. of Bavaria (b/w photo) / Bridgeman Images

SZT2990330: Prince Regent Luitpold of Bavaria, 1901 (b/w photo) / Bridgeman Images

SZT2990366: German Panzer II in France, 1940 (b/w photo) / Bridgeman Images

SZT2990393: German tanks at the ready in France, 1940 (b/w photo) / Bridgeman Images

SZT2990426: Prince Regent Luitpold of Bavaria with his family, 1905 (b/w photo) / Bridgeman Images

SZT2990468: Munich Conference, 1938 (b/w photo) / Bridgeman Images

SZT2990480: Czar Nicholas II in Romania, 1914 (b/w photo) / Bridgeman Images

SZT2990483: Czar Nicholas II blesses his troops during the Russo-Japanese War, 1904/05 (b/w photo) / Bridgeman Images

SZT2990507: Queen Victoria of England, 1859 (b/w photo) / Bridgeman Images

SZT2990513: Queen Victoria of England, 1880 (b/w photo) / Bridgeman Images