Correspondence regarding a Johnson & Phillips hot wire voltmeter
- Made:
- 25 September 1906 - 20 October 1914
File of correspondence between Johnson & Phillips Ltd and The British Engine, Boiler and Electrical Insurance Co. Ltd. regarding the supply of a hot wire voltmeter.
Details
- Identifier:
- YA1966.25
- Access:
- Open access.
- rights:
- Copies may be supplied in accordance with current copyright legislation and Science Museum Group terms and conditions.