Richard N. Vyvyan letter to Beatrice Marconi 1903 January 7
Dorchester transmitter hall: photograph 1928
First aerial system at the Cape Cod wireless station: photograph undated
Glace Bay Cape Breton Nova Scotia wireless station: photograph 1905
Granite column erected by the Marconi Company to commemorate the site of the former Poldhu Wireless Station at Poldhu Cove, Cornwall: photograph 1937 November
Operators and staff at Marconi wireless station, Cape Breton, Nova Scotia: picture postcard undated
Newspaper clippings 1909-1937