File:Cooke and Wheatstone telegraph cable.JPG
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Cooke_and_Wheatstone_telegraph_cable.JPG (656 × 546 pixels, file size: 103 KB, MIME type: image/jpeg)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 23:19, 1 July 2013 | 656 × 546 (103 KB) | commons>Geni | {{Information |Description ={{en|1=Photo of a section of a Cooke and Wheatstone 5 wire telegraph cable}} |Source =Photo by user:geni |Author =Geni |Date =april 2013 |Permission =GFDL CC-BY-SA |other_versions = }} [... |
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