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Amgueddfa Cymru – Museum Wales
Blue hardback book with a green label containing the title on the front cover. Inside, text is typed in black ink on off-white paper. Full title 'Colliery Equipment / Planned Maintenance Scheme / representative underground and surface / Mechanical Equipment / Check Lists / Part 1 / 1959 / National Coal Board / South Western Division'. Planned maintenance, equipment catalogue and inspection check lists.
