One of the First Rechargeable Batteries, about 1860
1860
Penicillium Mould presented by Alexander Fleming
1935
Cryptograph (coding and decoding machine) by Sir Charles Wheatstone, 1843-1875
1843-1875
Section of wooden water pipe laid by the New River Co.
1600-1800
Artificial right hand, Europe
1915-1925
Wooden-cased mill, Europe, 1701-1830
1701-1830
Lissen Headphones, 1922-1930
1921-1930
Enema syringe
1701-1800
Wheatstone printing telegraph, 1841
1841
Anatomical model of the spine
1901
Speech memory board from System X Automatic Announcement Subsystem, 1979-1985
1979-1985
Pill coating machine, France, 1915-1925
1915-1925
Embossed hip-flask
1801-1900
Robert Hooke type microscope
1671-1700
Prototype of the Brougham carriage
1838
Metal lice comb, 'Derbac' brand, England, 1930-1940
1930-40
Microscope by Marshall, c. 1700
1695-1705
‘Magnet’ model electric cooker, around 1935
circa 1935
Electric Construction Company mercury arc rectifier
One "Exide" CZG3 2 volt lead-acid accumulator
Dissecting microscope, c. 1750
1745-1755
Chamberlain and Hookham DC ampere-hour meter
Bucket Pump for hand spraying of cattle
recording moving iron ammeter
mercury motor type electricity supply meter by Ferranti
1884
electrodynamometer voltmeter
electrostatic voltmeter no. 1391
Aeolipile, French 18th century
1700-1799
Siemens electrodynamometer wattmeter (open instrument)
Modified form of John Marshall's Compound microscope
1725-1735
Cuff type (scroll foot) microscope by James Mann, c. 1755
1750-1760
Siemens electro-dynamometer-ammeter
1882
Aron watt hour, clock type meter
Reyrolle metal-clad 5A plug to BS 196
1955
Edison screw pendant type lamp holder
British Thomson-Houston recording watt-hour meter
Model 401 Thermo-Ammeter
Lord Kelvin's paralleling voltmeter
Archibald V Hill’s thermopile used to measure heat production, England, 1950-1960
1950-1960
Portable DC mercury motor type Kilowatt-hour meter
Miniature Abacus in wood
1845-1855
One of Wheatstone's electromagnetic engines, 1841
1841
Siemens and Halske direct current indicating and integrating watt-hour meter
Model of a Froment motor with brush gear (incomplete)
Aron clock-type ampere hour electricity supply meter for 100 amperes
1884-1900
moving iron ammeter
1890-1900
Siemens Brothers
Radiometer multi-range test meter
Aron clock-type ampere hour meter
1898
