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Reopened Pentre Colliery at Landore, Swansea, in 1913 and worked it until June 1924, employing up to 371 in 1920.
| Mine | Region | Years |
|---|---|---|
| Callands Pit | Swansea | 1913–1924 |
Record created: 10 October 2026 · Last researched: 10 October 2026
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