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Opened a mine at Tir-y-berth near Pengam in 1920, listed as Glanddu, and offered it for sale in March 1928.
| Mine | Region | Years |
|---|---|---|
| Glanddu Colliery | Caerphilly | 1920–1928 |
Record created: 11 October 2026 · Last researched: 11 October 2026
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