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Amgueddfa Cymru – Museum Wales
Full title: 'Calination and Agglomeration of the Dust and Fine Ores in the Turbulance Type of Furnace by the Saint Jacques System.' Report by Monsieur C. Saint-Jacques, Director of the Society Chanteraine d'applications Industrielles de Brevete. 15 pages attached with a paperclip. Typed in black on cream paper. Dated 1935.
