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Amgueddfa Cymru – Museum Wales
Typed in black ink on white paper. British Brown - Boveri Limited headed paper, which is printed in black and red ink. Some details are handwritten in pencil. Two pages stapled together. A letter adressed to E.T.David at Powell Duffryn Technical Services, from British Brown - Boveri Limited, replying to a letter (passed on by Richardsons, Westgarth & Co.Ltd-see 83.184I/62 (7)) regarding the turbo alternators at Middle Duffryn and Bargoed Power Stations. Dated 9th December 1952, and signed in blue ink. Loose within pink/peach card file with other documents relating to Middle Duffryn and Bargoed High Pressure Station.
