Hartmann and Braun voltmeter no.10222 scaled 0-650

Made:
1890 in Frankfurt am Main
maker:
Hartmann and Braun

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Hartmann and Braun voltmeter no.10222 scaled 0-650V, c.1890, made by Hartmann & Braun, Frankfurt for the Electric Construction Corporation Ltd.

Details

Category:
Electricity Supply
Object Number:
1970-632
Materials:
copper alloy, glass, insulating materials and metals
type:
voltmeters

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