National Cash Register co model 422X cash register
circa 1910
Early model wooden-case comptometer by Felt and Tarrant Manufacturing Co.
1887-1903
Light-bulb, filament, carbon
About 1890
horological rubber
1850-1900
Gordon universal type dental forceps
1835-1870
Cast iron plaque from Queenstown Road Bridge, Battersea, London, 1865
1865
Lancet case, carved with pictures of Napoleon's tomb
1821-1850
Ceramic pot lid for cherry tooth paste
1870-1910
Ceramic pot lid for cherry tooth paste
1860-1910
Marey sphygmograph and case
1857-1870
Schwann's microscope (no case)
1835
Fechner's double sound pendulum for testing aural discrimination
1898-1908
Dissecting microscope used by Sir Ronald Ross
1890-1910
Early binaural stethoscope
1861-1866
Pocket-sized obstetrical forceps
1864-1900
Model of Grew's locomotive for ice
circa 1861
Bo-Third Rail No D75S
1898
Clark's block signalling telegraph instrument, 1854
1854
Sugar nippers, 19th century.
1880-1900
Filings coherer, glass tube bent into U-shape at one end, 1894-1904
1894-1904
Coherer with coarse brass turnings, 1894
1894
Stock Exchange automatic telegraph, 1872-1880
1872-1880
Filings coherer, glass tube almost of taper shape, 1894-1904
1894-1904
Filings coherer, Lodge-Muirhead system, 1900-1910
1900-1910
Filings coherer, glass tube containing powdered copper, bulb at one end, 1894-1904
1894-1904
Hertzian receiving resonator, 1890-1894
1890-1894
Filings coherer, Lodge pattern with two wires inserted into bulb at one end, 1894-1904
1894-1904
De Forest syntoniser, 1902-1907
1902-1907
Coherer, narrow-bore glass tube, 1894-1904
1894-1904
Magnetic key, 1850-1870
1850-1870
Filings coherer, small glass tube with bulb at one end and cap of red sealing wax at other end, 1898
1898
Ring transformer, 1892
1892
Replica of the first Morse telegraph, 1835
1934
Filings coherer, glass tube with side-pocket attached to mounting bracket, 1894-1904
1894-1904
Filings coherer, glass tube bent into U-shape at one end with bulb to form side-pocket on mounting bracket with terminals, 1894-1904
1894-1904
Strowger automatic telephone, 1901-1910
1901-1910
Filings coherer, glass tube formed into T-shape at one end and bent round into U-shape at other end with bulb, 1899
1899
Strowger calling dial, 1906
1906
Henley's magneto electric double needle telegraph, 1848-1852
1848-1852
Coherer, with several needles in contact with crystal, 1894-1904
1894-1904
Filing coherer, glass tube, fitted on to mounting bracket with terminals, 1894-1904
1894-1904
horological gravers
1850-1900
Filings coherer, small glass tube with bulb at one end, 1894-1904
1894-1904
Siemens and Halske's ABC Telegraph used in Russia
1850-1897
Spiral spring coherer, 1890-1894
1890-1894
Filings coherer, glass tube with side pocket mounted on cylindrical rod with brass screw terminals at ends, 1894-1904
1894-1904
Wheatstone's portable ABC telegraph, 1858
1858
Filings coherer, glass tube curved into near U-shape at one end with coil winding at other end, 1894-1904
1894-1904
Bell telephone, mahogany case, 1878
1878
Filings coherer, Lodge pattern, 1895-1900
1895-1900