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Andrew ychwanegodd bin at ddelwedd WPW048351 - "Onllwyn No1 Colliery Drift Mine" | |
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Andrew ychwanegodd bin at ddelwedd WPW048356 - "Onllwyn No3 Colliery" | |
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Andrew ychwanegodd bin at ddelwedd WPW043064 - "Remains Of Cwrt Herbert Colliery closed 1929" | |
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Andrew Ymunodd â’r wefan a chreu proffil |