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Amgueddfa Cymru – Museum Wales
Typed in blue ink on light blue paper. A letter to Messrs. Ruths International Accumulators Ltd. regarding Cefn Coed Colliery P.F.Boilers and accumulators. A letter forwarding the questionnaire 83.184I/67 (26) and 83.184I/67 (27). Dated April 21st,1933. Loose within a green card file with all other documents with accession number 83.184I/67. The file is labelled 'Colliery Boiler Plant B31', 'Cefn Coed Data' and 'Colliery Engineering'.
