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Amgueddfa Cymru – Museum Wales
Two letters. The first letter is typed in black ink of pale blue paper. Ewbank and Partners Limited headed paper. Signed by J.O.Pearce in blue ink. The second letter is printed in black ink on cream paper. Signed by E.I.David in blue ink. Corrsep. between J.O Pearce of Ewbank & Partners Ltd. and E.I.David of Powell Duffryn Ltd. regarding circulating water temperatures at Bargoed New Power House. Loose within pink/peach card file with other documents relating to Middle Duffryn and Bargoed High Pressure Station.
