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Description: | This large switch was designed by J. H. Holmes. It is not meant for domestic use, but for use on switchboards. It is made of wood and brass with a long handle. It has no cover, so the mechanism is clearly visible. This switch could divert the circuit through an ammeter, which measures the electrical current, but it was only linked to the circuit when a reading was required.
Part: base & switch mechanism, Material: wood
Part: base & switch mechanism, Material: metal, copper alloy, brass | Source: | Tyne & Wear Archives & Museums | Identifier: | emu.ecatalogue.science&industry.482464 | Go to resource |
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