Double brass stand for bell jars on a brass pillar
1761
Block of Scintillator Crystals
1997-2000
Experimental carbon pencil microphone, 1878-1890
1878-1890
Experimental microphones with carbon pencils and cups, 1878-1890
1878-1890
Demainbray's rat's tail crane model
1735-1753
Specimen of television cable, 1936
1936
Tobacco box - made from a piece of roman lead pipe
1854
Fixed gap discharger, 1900-1950
1900-1950
George III's clockwork bell
1761
Gamma Photon Detector
1995-2000
Lead-lined radioactive material container
1970-1990
Gamma Photon Detector
1986-1997
Watson-Odelca x-ray set for mass miniature radiography, Europe, 1960-1961
1960-1961
Geometrical Groin Vault, string surface model
1872
Edison's electric carbon filament lamp
1879
Cell used in interruptor circuit, 1875-1890
1875-1890
Lead weight marked 'Reid' from the first cross-Channel telegraph cable, 1850.
1850
Type used for original Morse telegraph, 1835
1835
Model steam locomotive
Telephone Cable
1920-1940
Armoured Telephone Cable
1910-1940
High Frequency Cable
1890-1910
Lead sheathed domestic power cable
1940-1950
Linear motor
1948
Overhead Telephone Cable Clamp
1925-1935
Scintillation counter
1955-1965
Glass hydrometer by T A Reynolds and Co., London
Glass hydrometer by A J Reynolds, Barnsbury
Glass hydrometer by T A Reynolds and Co., London
Section of vacuum tube of Large Electron Positron storage ring (LEP) at CERN
1988-1989
Glass Baume hydrometer for heavy liquids
Diathermy set, United Kingdom, 1930
1930
Gag mouth Doyen's
1870-1935
One lead "brick" for building screen walls round r
1960-1965
Lead matrix inscribed "Pacte Federale 14 Juillet 1790"
1790-1819
Lead matrix
1790-1819
Glass 'Technico' specific gravity hydrometer
1930-1980
Glass hydrometer marked Baird & Tatlock
1945-1980
Glass hydrometer for battery acid and marked D P Battery Co Ltd
1920-1960
Glass hydrometer by unknown maker
1920-1960
Glass specific gravity hydrometer marked Gallenkamp
1930-1980
Glass brinometer by unknown maker
1900-1950
Glass hydrometer for battery acid and marked D P Battery Co Ltd
1920-1960
Glass specific gravity hydrometer marked Gallenkamp
1930-1980
Glass Baume hydrometer made by G H Zeal Ltd
1900-1980
Marine chronometer by E. Barthet, found on an abandoned ship
1840
Pendulum clock by Pieter Visbach
1660
"pop-a-point" Lead Pencil, with Refills and Interchangeable Nibs, 1978
1978
Specimen of telescoped cable, 1880-1930
1880-1930
Section, of first London underground cable, on wood mount with a brass plaque, and two brass screws
1844-1923