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Amgueddfa Cymru – Museum Wales
Handwritten in pencil on off-white, blue ruled paper. Two pages, with writing on the front page and the back page. On the front there is a rough sketch/plan of Middle Duffryn boiler house (with handwritten notes), and on the reverse side there are written notes and data relating to Middle Duffryn Power Station. Loose within pink/peach card file with other documents relating to Middle Duffryn and Bargoed High Pressure Station.
