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The coal company that took control of Glyncymmer Colliery, near Cymmer in the Afan valley, in 1921.
| Mine | Region | Years |
|---|---|---|
| Glyncymmer Colliery | Neath Port Talbot | 1921–? |
Record created: 24 October 2026 · Last researched: 24 October 2026
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