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Amgueddfa Cymru – Museum Wales
Title: 'Consett Iron Company Limited. Report on experiments in the use of larger quantities of Calcined Spathic Iron Ore on No.4 Blast Furnace, Consett, March, 1921.' Ten page report contained within a blue card folder. Report is typed in purple ink on off-white paper. Also contained within the folder is a blueprint technical drawing and four blueprint graphs.
