Four standards for the Y shafts. 19 Feb. 1823
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- Bookmark:http://archiveshub.jisc.ac.uk/data/gb216-d/dnai/d/dnai/s/6/3
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- ReferenceGB 216 D/D NAI/S/6/3
- Dates of Creation19 Feb. 1823
- Language of MaterialEnglish
- Physical Description1 plan