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Amgueddfa Cymru – Museum Wales
Handwritten in pencil on blue ruled, off-white paper. A table of the 'Price per Electrical Unit Charged to Taff Merthyr Steam Coal Co. Ltd.' Includes figures per half year from Sept 1934 - March 1946. The information was extracted from the Rhymney Valley Electricity working accounts. There are also some other calculations/ workings handwritten on the document. Loose within peach card file with other documents relating to Powell Duffryn Electrical System. This document was pinned together with 83.184I/61 (24) and 83.184I/61 (26)
