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Battersea Power Station - The Turbine Hall, view from the ground showing the giant turbines - 1933 ?2006 TopFoto
The Marconi wireless telephone set at the Mersey Docks and Harbour Board offices to maintain communication with the Crosby, Formby and Bar lightships, which have similar apparatus
Mr R H Davis, managing director of Siebe, Gohman and Co, with the new apparatus which renders escape from sunken submarines possible in 40 seconds
A ships lifeboat fitted with Marconi apparatus. The rectangular frame on top of the cabin is used in conjunction with the ordinary aerial to form a direction finder
The new wireless language. Mr W Eccles, Professor of applied Physics and Electrical Engineering at the City and Guilds of London Technical College
Singing to all Britain. Dame Clara Butt, when she sang from the new Chelmsford high power wireless station, opened a new era in broadcasting history. A view of the new station. 31 January 1925
The interior of one of the Marconi high speed telegraph stations at Ongar, Essex. The value transmitters at these stations are all controlled from London by means of underground cables
Light treatment. Hendry, the Australian cricketer, undergoing light treatment at a London specialist s. 22 June 1926
Demonstration of divers at work at Siebe. Gorman and Cos tanks at Westminster by Mr Durwood, the diving expert. 14 March 1925
Gas mask instruction at the council offices in Orpington, Kent. January 1938
Children at Pennthorpe School in Chislehurst, Kent, climb the ropes during demonstration. 1936
