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Title: Two "Tenby Pilot" double wall swiches made of phenol formald [Go to resource]
Description: Two "Tenby Pilot" double wall swiches made of phenol formaldehyde, made in England, 1929-1940 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: Two double electrical wall switches Temporal: 1920-1040 Source: Science Museum Identifier: 2005-341 Go to resource More Like this...
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