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Amgueddfa Cymru – Museum Wales
Handwritten in blue ink on off-white paper. National Coal Board South Western Division Area No.5 headed paper. A letter from W.M.Dodds to E.Ivor David of Powell Duffryn Ltd. regarding data relating to Bargoed and Middle Duffryn Power Stations. Loose within pink/peach card file with other documents relating to Middle Duffryn and Bargoed High Pressure Station.
