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Amgueddfa Cymru – Museum Wales
Black and orange print on cream paper. Two page booklet. Notes on Modern Blast Furnace & Steelworks Practice issued by The International Heat Economy Bureau Ltd. and Newtom Chambers & Co. Ltd. Bulletin No. 2 - Automatic Pressure Combustion Control. Printed in the booklet is a plan and three photographs/illustrations. Dated August 1926.
