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Llwyn-on Colliery Company

The company that began the successful sinking at Cefn Coed in 1921 after three earlier attempts had failed, and spent seven years getting through the Blue Pennant sandstone before being bought out by the Amalgamated Anthracite combine.

Mines operated

MineRegionYears
Cefn Coed Colliery Neath Port Talbot 1921–1928

Record created: 24 August 2026 · Last researched: 24 August 2026

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