speed recorder, North Eastern Railway
1891
EMI L2B Midget Audio Tape Recorder, 1957
1957
‘Scaffixer’ block: 1907, or 1910 Jones patent
1907-1910
Standard gas flow meter
1890-1930
'Pneumostat' inhaler, London, England, 1934-1935
1934-1935
Post Office box wheatstone bridge for line and other resistance measurements
1891
Midwifery bag and steriliser
1940-1948
Clay tobacco pipe
1750-1790
Acetylene Gas Generator and Holder
circa 1930
Mercury total immersion nitrogen filled thermometer
1955-1969
‘Scaffixer’ block: 1907, or 1910 Jones patent
1907-1910
Clark standard cell
‘Scaffixer’ block: 1907, or 1910 Jones patent
1907-1910
Profs. Ayrton and Perry standard inductance
‘Scaffixer’ block: 1907, or 1910 Jones patent
1907-1910
Clark standard element (cell) no. 142
1872
Daily Herald Photograph: Princess Elizabeth at Coronation concert
1937-04-03
Standard capacitance box
1880-1894
Photograph of radium teletherapy apparatus
1930-1931
Model of the sailing trawler 'Frank Buckland'
1890-1914
Moving-magnet mirror galvanometer no. 5685
Standard capacitor
1890
Clark standard cell no. 1297 by Nalder Brothers and Co.
Pair of Clark standard cells in one case
‘Scaffixer’ block: 1907, or 1910 Jones patent
1907-1910
Experimental wet gas meter
Daily Herald Photograph: Tithe War
1936
Vertical support for mounting a street lamp fitting
1934-1939
Daily Herald Photograph: Steeplejack suspended from a mast
Daily Herald Photograph: London Allotments and Gardens' Show
1934-08
Daily Herald Photograph: Tithe War
1936
Chain tie
1907-1910
Scaffold pole short length
1907-1910
Daily Herald Photograph: Tithe War
1936
Daily Herald Photograph: London Allotments and Gardens' Show
1933-09-01
Daily Herald Photograph: Wood dumps for emergency fuel
1945-02-13
Armistice Day Field of Remembrance
12 November 1934
Daily Herald Photograph: Petitioning for pensions
1939-07-27
Standard capacitor
1890
Standard air capacitor
Ring hex spanner
1907-1910
Portable testing set with galvanometer
Standard condenser no. 30510
1911
Mercury total immersion nitrogen filled thermometer
1955-1969
Hydrometer for measuring densities of liquids
circa 1850
Megohm variable resistance no. 21298
Chain tie
1907-1910
Davies' patent ampere meter
Pair of Clark standard cells in one case
Wet Gas Test Meter for Measuring Rate of Gas Consumption by William Sugg
1850