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Amgueddfa Cymru – Museum Wales
Title: 'Summarised Operating Costs of Blast Dehydration Plant' Two tables comparing costs from Carrier Engineering Co. Ltd. and W.C. Holmes & Co. Ltd and two tables comparing costs from Silica Gel Ltd., Kestner Evaporator & Co. Ltd. and Wishaw plant. Typed in black ink on cream paper. Four pages stapled together.
