File:EB1911 Telegraph - submarine cable - manufacture.jpg
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EB1911_Telegraph_-_submarine_cable_-_manufacture.jpg (765 × 276 pixels, file size: 37 KB, MIME type: image/jpeg)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 19:27, 16 February 2016 | 765 × 276 (37 KB) | Library Guy | {{Information |Description ={{en|1=Diagram of the manufacture of submarine telegraph cable: the copper strand is passed through a vessel A containing melted Chatterton's compound, then through the cylinder C, in which a quantity of gutta-percha, pu... |