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Amgueddfa Cymru – Museum Wales
Full Title - 'Mines and Quarries Form No. 64. Coal Mines Act, 1911. The parts of the Abstract and General Regulations Required to be Supplied to the Persons in Charge of Ventilating Machines' 24 - page booklet on off-white paper, stapled together, with black printed text. Loose inside a black leather hardback cover (with other coal mining regulations, bills etc) with the 'British Thomson-Houston Company / Electrical Engineering Manufacturers / Rugby' printed on it. The booklet is divided into two parts: Part I. Abstract; Part II. General Regulations.
