Darganfod ac Archwilio’r Casgliad

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Bryntail mine, near Llanidloes

Bryntail mine, near Llanidloes
  • 39
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MFS ar Pumlumon

MFS ar Pumlumon
  • 47
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MFS at Dylife

MFS at Dylife
  • 46
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MFS at Dylife

MFS at Dylife
  • 46
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Minllyn village & quarry ,1930s

Minllyn village & quarry ,1930s
  • 267
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Y gerdd 'Copper Mountain

Y gerdd 'Copper Mountain
  • 477
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Gweithfeydd Mwyn Cwmystwyth o'r dwyrain

Gweithfeydd Mwyn Cwmystwyth o'r dwyrain
  • 433
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Gweithfeydd Mwyn Cwmystwyth o'r gorllewin

Gweithfeydd Mwyn Cwmystwyth o'r gorllewin
  • 436
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Gwaith Mwyn Kingside, Cwmystwyth

Gwaith Mwyn Kingside, Cwmystwyth
  • 447
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Cerdyn post yn dangos Gweithfeydd Mwyn...

Cerdyn post yn dangos Gweithfeydd Mwyn...
  • 420
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Tomen sbwriel Gwaith y Fron, Cwmystwyth

Tomen sbwriel Gwaith y Fron, Cwmystwyth
  • 463
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Ffilm - ‘Ymchwilio i dirwedd Cymru, Lluniadau...

Ffilm - ‘Ymchwilio i dirwedd Cymru, Lluniadau...
  • 855
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Ffilm ddogfen Cofio Cwmorthin (with subtitles)

Ffilm ddogfen Cofio Cwmorthin (with subtitles)

  • 2,317
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Ffilm ddogfen Cofio Cwmorthin

Ffilm ddogfen Cofio Cwmorthin
  • 2,411
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Lluniad gan Falcon Hildred. Tŷ Uncorn, 1978....

Lluniad gan Falcon Hildred. Tŷ Uncorn, 1978....
  • 1,337
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Cwmorthin Conglog 95

Cwmorthin Conglog 95
  • 883
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Cwmorthin Conglog 89

Cwmorthin Conglog 89
  • 1,033
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Cwmorthin Conglog 82

Cwmorthin Conglog 82
  • 960
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Cwmorthin Conglog 76

Cwmorthin Conglog 76
  • 938
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