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Amgueddfa Cymru – Museum Wales
Powell Duffryn Coal Co. Enquiry (New sinkings) cross compound sinking engine. Arranged for converting to cross compound winding engine cylinders 27"H.P 44" L.P x 60" Stroke. Scale 3/8" = 1'0". Fraser & Chalmers Ld. ERITH Date 19.9.04. This Drawing must not be worked to Erith Kent England.
