Cwmgwili Colliery. Analysis of the Working Faces at Cwmgwili for inherent ash content. 20/21 August 1970 (1426/70/WW) Sep 1970
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- Bookmark:http://archiveshub.jisc.ac.uk/data/gb216-d/dpro/ncb6/d/dpro/ncb/6/1614
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- ReferenceGB 216 D/D PRO/NCB/6/1614
- Dates of CreationSep 1970
- Language of MaterialEnglish
- Physical Description1 file