Apparatus to inspect electrical wiring as it heats up

Made:
1880-1900 in Paris
maker:
Nachet and Son
Apparatus to inspect electrical wiring as it heats up

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Apparatus to inspect electrical wiring as it heats up
Science Museum Group
© The Board of Trustees of the Science Museum

Apparatus to inspect electrical wiring as it heats up, probably a special job, by Nachet and Son, 17 rue St. Severin, Paris, France, 1880-1900.