Thomson's electrostatic Voltmeter no.19

Thomson's electrostatic Voltmeter no.19

Details

Category:
Electricity Supply
Object Number:
1927-141
Materials:
copper alloy, mahogany, white metal (possibly lacquered), steel, plastic (possibly phenolic) and plastic plaque
Measurements:
overall: 260 mm x 230 mm x 230 mm, , 3.6kg
type:
voltmeter
credit:
Ministry of Transport