DescriptionTelegraph Sounder.JPG English: 120 Ohm mainline sounder manufactured by J H Bunnell & Company Date 25 January 2011 Source Own work Author Smoketronics...
English Steamer Telegraph on Puget Sound, off Duwamish Head, circa 1910....
English Sternwheeler Telegraph running on Puget Sound, circa 1909...
71 1141 557 Telegraph key 40 199 106 268 1141 557 Dry cell battery 746 353 80 34 1141 557 Coherer 727 276 117 83 1141 557 Telegraph sounder 832 342 87...
Commons Attribution-Share Alike 2.0 truetrue English Cable telegraph out to Voe of Sound URL: https://www.geograph.org.uk/profile/11449 author name string:...
DescriptionNIE 1905 Telegraph - sounder.jpg English: Drawing of a telegraph sounder. Date published 1905 Source “Telegraph,” The New International Encyclopædia...
DescriptionEB1911 Telegraph - Modern “Sounder”.jpg English: The modern pattern of “sounder” as used by the British Post Office for reception of telegraphy...
at URL: https://www.flickr.com/photos/51764518@N02/8936528984/ operator: Flickr URL: https://live.staticflickr.com/65535/8936528984_6dd5c57caa_o.jpg...
English The former Harrisburg Telegraph Building as illustrated on a 1910 postcard...
English Boiler built at Sumner Iron Works for sternwheeler Telegraph in 1903. determination method: SHA-1...
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