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Title: Telegraph : Johnson & Phillips Patent Liquid Insulator [Go to resource]
Description: 'Johnson & Phillips' Patent Insulator - an oil bath insulator used on telegraph cable. Single piece construction. See notes License: http://www.beamish.org.uk/terms-of-use Subjects: SHIC - Working Life - transport and communications - Postal services and telecommunications Source: Beamish Identifier: http://collections.beamish.org.uk/search... Go to resource More Like this...
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