Original National Coal Board negative number: n/a. Original Glamorgan Archives Box number: DNCB/48/7.
Copy of a diagram, Celynen South Colliery, Production Control, Surface Flow-Capacity
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- Bookmark:http://archiveshub.jisc.ac.uk/data/gb214-dncb/dncb/14/4/165/1/16
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- ReferenceGB 214 DNCB/14/4/165/1/16
- Dates of Creation[1950s-1970s]
- Physical Description1 Glass Plate Negative