‘telegraphy’ historical pictures (exact matches)

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Modern electric telegraph
Modern electric telegraph
The Marconi Co's Beam Station, Dorchester
The Marconi Co's Beam Station, Dorchester
Thermionic valves in the Marconi wireless telegraphy station at Cefn Du, near Caernarfon, Wales
Thermionic valves in the Marconi wireless telegraphy station at Cefn Du, near Caernarfon, Wales
Cable Run from Intermediate Frame to Multiple
Cable Run from Intermediate Frame to Multiple
Power Machinery
Power Machinery
Automatic Equipment, Main Office, Berkeley, California
Automatic Equipment, Main Office, Berkeley, California
Samuel Morse, American inventor and telegraphy pioneer
Samuel Morse, American inventor and telegraphy pioneer
Profondeurs de l'ocean Atlantique sur le trajet de l'Irlande a Terre-Neuve, d'apres les sondages du lieutenant …
Profondeurs de l'ocean Atlantique sur le trajet de l'Irlande a Terre-Neuve, d'apres les sondages du lieutenant …