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Amgueddfa Cymru – Museum Wales
A booklet on the 'Dry Cleaning of Coal B.S.C. Process by the Coppee Co. (Great Britain), Ltd." Black card cover with gold stamped details. In the top right hand corner there is a red and white sticker with '150' handwritten in the centre. Inside: white pages and black printed text, three black and white photographs and three drawings.
