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  • Tags: Morse

COMM 8.001.tif
Ladies operating a single-current Morse key. Note the 'sounder' backed by a reflecting device to localise the sound. In front of the key can be seen instruments for adjusting the signals and a galvanometer which indicates the presence or otherwise of…
Output Formats

atom, dcmes-xml, json, omeka-json, omeka-xml, rss2