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First transatlantic telephone call, from London to New York, 7 March 1926, (1935). 'Ringing Up "Uncle Sam"...the actual scene at the switchboard when London spoke to America by radio telephone'. From "The Silver Jubilee Book - The Story of 25 Eventful Years in Pictures". [Odhams Press Ltd., London, 1935] (KEYSTONE/HERITAGE IMAGES/The Print Collector)