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Amgueddfa Cymru – Museum Wales
Full title - Across the Atlantic Ocean. First Message January 18, 1903. Envelope and folded slip of paper that orignally contained 34.219/2 (1). Along with two newspaper cuttings reporting on first test across the Atlantic when letter 'S' was transmitted in morse code, 12 Dec 1901 and newspaper cutting "Mr Roosevelt to The King" describing first complete message sent across by Theodore Roosevelt to King Edward VII, Jan 18, 1903.
