No. 1 Area. Brynlliw and Mountain Collieries. Swansea Six Feet Seam (2049) Mar 1962
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- Bookmark:http://archiveshub.jisc.ac.uk/data/gb216-d/dpro/ncb6/d/dpro/ncb/6/140
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- ReferenceGB 216 D/D PRO/NCB/6/140
- Dates of CreationMar 1962
- Language of MaterialEnglish
- Physical Description1 file