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Amgueddfa Cymru – Museum Wales
Photograph captioned ''Penyrorsedd Slate Quarry. A closer look at the 'Blondins', hoisting mechanisms to bring the slabs up from the quarry workings to the platforms high above the places of work. Three aerial ropeways spanning the quarry pit from the hoisting platforms on each side.'' Mounted on card. Made for the exhibition RECORDING WALES 3 in 1970/1971.
