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Category
Electricity Supply
4
Maker
Nalder Brothers and Thompson Limited
1
The Record Electrical Co. Ltd
1
Object type
insulation tester
4
Place
England
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England, United Kingdom
1
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bakelite
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copper alloy
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insulation tester with internal dynamo
circa 1940
Nalder Bros. & Thompson Ltd. "Ohmer" insulation tester no.1696
Insulation tester
'Ohmer' test set by Nalder Bros.
Ohmer Insulation Tester By Nalder Bros.
