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Amgueddfa Cymru – Museum Wales
Typed in black ink on thin, off-white paper. Some details have been handwritten in pencil and blue ink. Six page paper/article held together by a pin in the top left hand corner. The document is entitled 'Powell Duffryn Powell Supply System: Remarks on Cooper Brothers' Comments'. Loose within pink/peach card file with other documents relating to Middle Duffryn and Bargoed High Pressure Station.
