Early voltmeter

Early voltmeter, Cunynghame Woodhouse and Rawson's patent

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Early voltmeter, Cunynghame Woodhouse and Rawson's patent
Science Museum Group
© The Board of Trustees of the Science Museum

Early voltmeter, Cunynghame Woodhouse and Rawson's patent, in fitted wood case

Details

Category:
Electricity Supply
Object Number:
1937-568
Materials:
mahogany, copper alloy, black, rigid plastic, glass, white metal and purple felt
Measurements:
overall: x x , , 3.38kg
overall (instrument): 140 mm x 200 mm x 150 mm, ,
overall (box): 150 x 230 x 175 mm, ,
type:
voltmeter
credit:
Holden, Sir Henry Capel Lofft