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Amgueddfa Cymru – Museum Wales
Collection of slides forming lecture "Rails in the Slate Industry" by D.R. Geering, UMIST 3rd year Mechanical Engineering Projects, c.1975 (copy of lecture notes in related material).
Maenofferen Slate Quarry, note that the cables must be coiled in opposition around the drum, also the brake lever and operator's seat on the left
