SZT2992322: Sunday Merciful (litho), German School, (19th century) / Bridgeman Images

SZT2992331: Theodore Roosevelt on a hunting trip in the Yellowstone National Park, 1905 (b/w photo) / Bridgeman Images

SZT2992340: Charles Dawes and his wife Hannah Dawes, 1926 (b/w photo) / Bridgeman Images

SZT2992415: Videophone, 1930 (b/w photo) / Bridgeman Images

SZT2992439: Telephone book from Berlin, 1931 (b/w photo) / Bridgeman Images

SZT2992451: Paul von Hindenburg in front of the microphone, 1932 (b/w photo) / Bridgeman Images

SZT2992460: Reich President Paul von Hindenburg, 1933 (b/w photo) / Bridgeman Images

SZT2992509: Stanley M. Bruce and Frank B. Kellogg in front of the U.S. State Department, 1926 (b/w photo) / Bridgeman Images

SZT2992515: J. Butler Wright, Crown Prince Gustav Adolf and Frank B. Kellogg in Washington, 1926 (b/w photo) / Bridgeman Images

SZT2992527: American mail plane 'Lockheed Orion', 1933 (b/w photo) / Bridgeman Images

SZT2992551: Mailboxes with stamp machine, 1928 (b/w photo) / Bridgeman Images

SZT2992554: Mailmen in Berlin, 1897 (b/w photo) / Bridgeman Images

SZT2992557: British postwoman, 1937 (b/w photo) / Bridgeman Images

SZT2992575: Image telegraphs station, 1930 (b/w photo) / Bridgeman Images

SZT2992578: Image telegraphs station, 1930 (b/w photo) / Bridgeman Images

SZT2992602: Home of Goethe in Ilmenau, 1936 (b/w photo) / Bridgeman Images

SZT2992644: Albert Kesselring, 1941 (b/w photo) / Bridgeman Images

SZT2992656: Gottlieb Daimler (b/w photo) / Bridgeman Images

SZT2992704: French policeman controls at the border to the Saar Region, 1935 (b/w photo) / Bridgeman Images

SZT2992722: Wolf Heinrich Graf von Helldorf, 1933 (b/w photo) / Bridgeman Images

SZT2992734: Arthur Rimbaud (b/w photo) / Bridgeman Images

SZT2992471: August von Mackensen, 1901 (b/w photo) / Bridgeman Images

SZT2992597: Indian wedding (b/w photo) / Bridgeman Images

SZT2992502: Erich von Falkenhayn in front of his headquarters in Romania, 1916 (b/w photo) / Bridgeman Images

SZT2992687: Betty Heine (b/w photo) / Bridgeman Images

SZT2992526: Air mail transport in Germany, 1928 (b/w photo) / Bridgeman Images

SZT2992693: Rudolf Nelson in 'And Nelson plays', 1929 (b/w photo) / Bridgeman Images

SZT2992529: Cargo aircraft at Tempelhof Airport in Berlin, 1934 (b/w photo) / Bridgeman Images

SZT2992747: Old map of South Africa (b/w photo) / Bridgeman Images

SZT2992535: Friedrich Wilhelm Murnau (b/w photo) / Bridgeman Images

SZT2992550: Special date stamp action of the Reichspost, 1937 (b/w photo) / Bridgeman Images

SZT2992553: Mailbox, 1927 (b/w photo) / Bridgeman Images

SZT2992598: Indian bridal pair (b/w photo) / Bridgeman Images

SZT2992601: Cordell Hull in the White House, 1937 (b/w photo) / Bridgeman Images

SZT2992607: Summerhouse of Goethe in Weimar (b/w photo) / Bridgeman Images

SZT2992640: Hugo Eckener, Theodor von Guerard and Fridtjof Nansen, 1928 (b/w photo) / Bridgeman Images