speed recorder, North Eastern Railway
1891
EMI L2B Midget Audio Tape Recorder, 1957
1957
‘Scaffixer’ block: 1907, or 1910 Jones patent
1907-1910
'Pneumostat' inhaler, London, England, 1934-1935
1934-1935
Standard gas flow meter
1890-1930
Midwifery bag and steriliser
1940-1948
Post Office box wheatstone bridge for line and other resistance measurements
1891
Acetylene Gas Generator and Holder
circa 1930
Clay tobacco pipe
1750-1790
‘Scaffixer’ block: 1907, or 1910 Jones patent
1907-1910
‘Scaffixer’ block: 1907, or 1910 Jones patent
1907-1910
Mercury total immersion nitrogen filled thermometer
1955-1969
Clark standard element (cell) no. 142
1872
Clark standard cell
‘Scaffixer’ block: 1907, or 1910 Jones patent
1907-1910
Profs. Ayrton and Perry standard inductance
Daily Herald Photograph: Princess Elizabeth at Coronation concert
1937-04-03
Standard capacitance box
1880-1894
Model of the sailing trawler 'Frank Buckland'
1890-1914
Standard capacitor
1890
Photograph of radium teletherapy apparatus
1930-1931
Moving-magnet mirror galvanometer no. 5685
Pair of Clark standard cells in one case
Clark standard cell no. 1297 by Nalder Brothers and Co.
Daily Herald Photograph: Tithe War
1936
‘Scaffixer’ block: 1907, or 1910 Jones patent
1907-1910
Experimental wet gas meter
Hydrometer for measuring densities of liquids
circa 1850
Chain tie
1907-1910
Daily Herald Photograph: London Allotments and Gardens' Show
1934-08
Vertical support for mounting a street lamp fitting
1934-1939
Scaffold pole short length
1907-1910
Daily Herald Photograph: Steeplejack suspended from a mast
Daily Herald Photograph: Tithe War
1936
Daily Herald Photograph: Wood dumps for emergency fuel
1945-02-13
Daily Herald Photograph: Tithe War
1936
Daily Herald Photograph: Petitioning for pensions
1939-07-27
Daily Herald Photograph: London Allotments and Gardens' Show
1933-09-01
Armistice Day Field of Remembrance
12 November 1934
Standard capacitor
1890
Standard air capacitor
Standard condenser no. 30510
1911
Mercury total immersion thermometer
1955-1969
Mercury total immersion nitrogen filled thermometer
1955-1969
Ring hex spanner
1907-1910
Pair of Clark standard cells in one case
Portable testing set with galvanometer
Daily Herald Photograph: Pensioners petition House of Commons
1939-07-19
Megohm variable resistance no. 21298
Chain tie
1907-1910