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National Coal Board, South Wales Area
Diwydiant
Visit of Prince of Wales to Betws Mine, 1978, programme
National Coal Board, South Wales Area
National Coal Board
South Western Printers Limited
2012.45/2
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Coal Queen visiting Britannia Colliery, photograph
National Coal Board, South Wales Area
National Coal Board
2005.56/12
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Marine Colliery, photograph
National Coal Board, South Wales Area
National Coal Board
72.102I/3
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N.C.B. South Wales Oakdale Colliery (leaflet)
National Coal Board, South Wales Area
National Coal Board
Plum Design Associates Ltd.
2017.28/26
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Coal Queen visiting Britannia Colliery, photograph
National Coal Board, South Wales Area
National Coal Board
2005.56/17
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N.C.B. South Wales Treforgan Colliery (leaflet)
National Coal Board, South Wales Area
National Coal Board
Plum Design Associates Ltd.
2017.28/33
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Trelewis drift mine, photograph
National Coal Board, South Wales Area
National Coal Board
2004.66/2
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Marine Colliery, photograph
National Coal Board, South Wales Area
National Coal Board
72.102I/2
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N.C.B. South Wales Mardy Colliery (leaflet)
National Coal Board, South Wales Area
National Coal Board
Plum Design Associates Ltd.
2017.28/20
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Diwydiant
Notes of Guidance for Safety of Contractors Employees (booklet)
National Coal Board, South Wales Area
National Coal Board
Walter Ellis and Son
2001.1/744
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Marine Colliery, photograph
National Coal Board, South Wales Area
National Coal Board
72.102I/12
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Diwydiant
N.C.B. South Wales Deep Navigation Colliery (leaflet)
National Coal Board, South Wales Area
National Coal Board
Plum Design Associates Ltd.
2017.28/17
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