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Incorporated in 1861 to work Nyth-y-Gigfran quarry; wound up in liquidation in 1872 after the quarry's 1870 closure.
| Mine | Region | Years |
|---|---|---|
| Nyth-y-Gigfran Quarry | Gwynedd | 1861–1872 |
Record created: 30 August 2026 · Last researched: 30 August 2026
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