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National Coal Board, South Western Division
Diwydiant
Ploughing Manual (booklet)
National Coal Board, South Western Division
National Coal Board
2001.1/786
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Diwydiant
Oakdale Colliery reconstruction project, report
National Coal Board, South Western Division
National Coal Board
2017.38/435
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Diwydiant
The Proposed Reconstruction of Lady Lewis Colliery (report)
National Coal Board, South Western Division
National Coal Board
2017.38/420
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Diwydiant
Trainees in coal industry, photograph
National Coal Board, South Western Division
National Coal Board
2002.119/10
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Diwydiant
Tower Colliery reconstruction project, report
National Coal Board, South Western Division
National Coal Board
2017.38/425
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Diwydiant
Hafodyrynys Colliery development project, report
National Coal Board, South Western Division
National Coal Board
2017.38/433
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Diwydiant
Trainees in coal industry, photograph
National Coal Board, South Western Division
National Coal Board
2002.119/18
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Diwydiant
Fernhill Colliery reconstruction project, report
National Coal Board, South Western Division
National Coal Board
2017.38/418
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Diwydiant
The Proposed Reorganisation of Tymawr Colliery (report)
National Coal Board, South Western Division
National Coal Board
2017.38/424
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Diwydiant
What Goes on Underground? (report)
National Coal Board, South Western Division
National Coal Board
2017.38/720
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Diwydiant
Notes on the Brynlliw Project
National Coal Board, South Western Division
National Coal Board
2017.38/374
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Diwydiant
Park Colliery, photograph
National Coal Board, South Western Division
National Coal Board
2017.53/2
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