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Amgueddfa Cymru – Museum Wales
Generel view of Penrhyn Quarry galleries, with inclines and ‘Jerry M’s’ in the distance (‘Jerry M’ was the name given to aerial ropeways used to raise slate from lower levels or tips. The name ‘Blondin’ was used in other slate quarries). The view shown in the photograph has now been completely transformed as a result of the development of the quarry.
