Morning after contraceptive pills, Germany, 1986
1986
Railway signalling bell by Siemens and Halske
Siemens & Halske AG radio valve, 1884-1936
1884-1936
Siemens and Halske's ABC Telegraph used in Russia
1850-1897
Fechner's double sound pendulum for testing aural discrimination
1898-1908
William Thomson's marine mirror galvanometer, 1850-1900
1854
Ureameter in case
'Bonicot' outfit
1930-1960
Bronze medal
1830
Circular bronze medal depicting C. G. Ehrenberg
1868
Medal commemorating Johann Wendt
1833
Circular bronze medal
1850
Medal, bronze, to commemorate 50th year of doctorate of Dr. C.H. Pfaff
1843
Medal commemorating Johann Wendt
1833
Silver prize medal of Műegyetemi AFC, Budapest
1903-1914
Blackened bronze (?) medal, to commemorate Johann
1825
Lapel badge for 5th International Zoological Congress, Berlin
1901
White metal medal
1832
Silver medal commemorating J W Ellenberger
1826
Silver medal to commemorate H. Meyer (1767-1828)
1819
Circular bronze medal
1825
Circular bronze medal to commemorate Baron von Humboldt
1829
Coin Commemorating Zeppelin world flight, 1929
1930
Medal for Airship Race 10-11 October 1908 in Berlin
1908
Portrait, photogravure, Herbert Spencer / Photographische Gesellschaft Berlin
1910-1919
Ludwig
1910-1919
Portrait, photogravure, Tycho Brahe / Photographische Gesellschaft Berlin
1910-1919
K E von Baer
1910-1919
Portrait, photogravure, William Herschel (1738-1822)
1910-1919
Portrait, photogravure, Dmitrii Ivanovich Mendelejeu / Photographische Gesellschaft Berlin
1910-1919
Portrait, photogravure, Hermann von Helmholtz / Photographische Gesellschaft Berlin
1910-1919
Portrait, photogravure, Carl von Linne [Linnaeus] / Photographische Gesellschaft Berlin
1910-1919
Portrait, photogravure, Ernst Heinrich Haekel / Photographische Gesellschaft Berlin
1910-1919
Portrait, photogravure, Otto von Guericke / Photographische Gesellschaft Berlin
1910-1919
Portrait, photogravure, Leonardo da Vinci / Photographische Gesellschaft Berlin
1910-1919
Portrait, photogravure, John Lubbock
1910-1919
Portrait, photogravure, Max Planck / Photographische Gesellschaft Berlin
1910-1919
Portrait, photogravure, Christian Friedrich Schonbein / Photographische Gesellschaft Berlin
1910-1919
Portrait, photogravure, Wilhelm Konrad Roentgen / Photographische Gesellschaft Berlin
1910-1919
Portrait, photogravure, Siemens / Photographische Gesellschaft Berlin
1910-1919
Portrait, photogravure, Emil Du Bois-Reymond / Photographische Gesellschaft Berlin
1910-1919
Portrait, photogravure, William Thomson
1910-1919
Portrait, photogravure, Emil Fischer / Photographische Gesellschaft Berlin
1910-1919
Portrait, photogravure, Eduard Suess / Photographische Gesellschaft Berlin
1910-1919
Portrait, photogravure, Charles Darwin / Photographische Gesellschaft Berlin
1910-1919
Portrait, photogravure, Walther Hermann Nernst / Photographische Gesellschaft Berlin
1910-1919
Portrait, photogravure, Eilhard Mitscherlich / Photographische Gesellschaft Berlin
1910-1919
Portrait, photogravure, Richard Owen / Photographische Gesellschaft Berlin
1910-1919
Portrait, photogravure, Wilhelm Ostwald / Photographische Gesellschaft Berlin
1910-1919
Portrait, photogravure, Allesandro Volta / Photographische Gesellschaft Berlin
1910-1919