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Amgueddfa Cymru – Museum Wales
Typed in black ink on off-white paper. Some details handwritten in blue ink. A list/table of the electrical units purchased by Powell Duffryn Ltd. from South Wales Power Co., from March 1936 - Dec 1948. 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 (25)
