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Cloddiad Pen y Bryn Excavation

  • 67
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Photoscoot 2020: site of Green's Foundry,...

  • 35
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Photoscoot 2020: site of Green's Foundry,...

  • 41
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Names of Dyffryn Nantlle Slate Quarries Artwork

  • 311
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Rhiwgreiddyn Quarry

  • Collection
  • [105 items]
  • 208

Cwmystwyth Lead Mines from the east

  • 126
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Cwmystwyth Lead Mines from the west

  • 156
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Kingside Mine, Cwmystwyth

  • 119
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Plan and Section of Cwmystwyth Concentration Mill

  • 86
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Nantlle Railway tunnel, Dorothea Quarry

  • 101
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Dororthea Quarry Beam Engine

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Inscription of JER with a partial date

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Abergynolwyn 1903

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Cilgwyn, Dyffryn Nantlle

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'The Carved Slates of Dyffryn Ogwen 1830...

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Photocopy of rubbing of carved slate

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'The Carved Slates of Dyffryn Ogwen 1830...

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Penyrorsedd

  • 246
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Dorothea Quarry Boilers

  • 362
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Memories of Margaret Culverhouse (nee Jones)

  • 439
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Pen y Bont Workers, Oakley Quarry, Blaenau...

  • 2,593
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Llanfair Slate Yard c1905

  • 612
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Penmaenmawr Quarry

  • 1,216
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Cwmorthin Remembered documentary (with subtitles)

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Cwmorthin Remembered documentary

  • 1,592
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old black and white film showing two men...

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