The Performance of Gorllwyn Seam (Mardy) housecoal on the Stool Bottom Grate (1459/71/DF.25) Mar 1971
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- Bookmark:http://archiveshub.jisc.ac.uk/data/gb216-d/dpro/ncb6/d/dpro/ncb/6/1583
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- ReferenceGB 216 D/D PRO/NCB/6/1583
- Dates of CreationMar 1971
- Language of MaterialEnglish
- Physical Description1 file