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Full Title - 'Statutory Rules and Orders. 1920, No. 2264. Coal Mines Act / The Safety Lamps Order of the 1st December, 1920.' 13 - page booklet on off-white paper, stapled together, with black printed text and illustrations. 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.
