Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Coal Mines Act, 1911, electricity regulations
Full Title - 'Mines and Quarries Form No.11 (August, 1924.) Coal Mines Act, 1911. General Regulations as to the Installation and use of Electricity with Explanatory Memorandum.' A 74-page booklet on cream 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.