Siemens & Halske AG radio valve, 1884-1936
1884-1936
Siemens and Halske's ABC Telegraph used in Russia
1850-1897
Railway signalling bell by Siemens and Halske
Fechner's double sound pendulum for testing aural discrimination
1898-1908
Morning after contraceptive pills, Germany, 1986
1986
William Thomson's marine mirror galvanometer, 1850-1900
1854
Student microscope with drum base
1831-1870
Reading microscope for Feuso goniometer
1880-1890
Lieberkuhn stage plate for dissection of frogs or larger animals
1731-1770
Coin Commemorating Zeppelin world flight, 1929
1930
Hofmann's apparatus for decomposing phosphuretted hydrogen
1876
Helmholtz's quadrant electrometer
1876
Hofmann's apparatus for decomposing phosphuretted hydrogen
1876
Burette with glass stopcock, graduated to 30 cc.
1876
Stereoscopic telescope, part sectioned
'Fernglas 08' Galilean binoculars, in case
1908-1918
Pair of prismatic field glass binoculars
1910-1926
Medal, bronze, to commemorate 50th year of doctorate of Dr. C.H. Pfaff
1843
Circular bronze medal depicting C. G. Ehrenberg
1868
Circular bronze medal
1850
Bronze medal
1830
Medal commemorating Johann Wendt
1833
Blackened bronze (?) medal, to commemorate Johann
1825
Lapel badge for 5th International Zoological Congress, Berlin
1901
Medal commemorating Johann Wendt
1833
Enamelled gilt cross attached to red and white ribbon in maroon leather-covered case
1870-1920
Silver medal to commemorate H. Meyer (1767-1828)
1819
Circular bronze medal
1825
Silver medal commemorating J W Ellenberger
1826
Circular bronze medal to commemorate Baron von Humboldt
1829
Brass reflecting circle.
1865-1871
Speculum, rectal, Duke
1851-1900
Cystoscopic periscope
1914
Leipzig wheel with arms and contacts
Aubert's Episcotister by E. Zimmerman
Sudan III by Actien Gesellschaft fur Anilin Fabrikation
1900-1905
Brillant-Kupferblau BW by Actien Gesellschaft fur Anilin Fabrikation
1900-1905
Mignon typewriter
1905
Photo matrix of a letter 'S' from a Diatronic "S" photosetting machine
1970-1985
Ureameter in case
Lockhart Mummery's sigmoidoscope
1905-1930
Sphygmomanometer and booklet
Clinical thermometer
1891-1910
Helmholtz pendulum, Berlin, Germany, 1895-1910
1895-1910
Portrait, photogravure, Immanuel Kant / Photographische Gesellschaft Berlin
1910-1919
Portrait, photogravure, Wilhelm Ostwald / Photographische Gesellschaft Berlin
1910-1919
Portrait, photogravure, Ernst Heinrich Haekel / Photographische Gesellschaft Berlin
1910-1919
Portrait, photogravure, William Thomson
1910-1919
Portrait, photogravure, Carl von Linne [Linnaeus] / Photographische Gesellschaft Berlin
1910-1919
Portrait, photogravure, Siemens / Photographische Gesellschaft Berlin
1910-1919