Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
St. Clements Press Ltd.
Diwydiant
Welsh Associated Collieries Limited, report
Printer: St. Clements Press Ltd.
(1939)
2018.135/38
Diwydiant
Powell Duffryn Associated Collieries Limited, report
Printer: St. Clements Press Ltd.
(1940)
2018.135/29
Diwydiant
The Powell Duffryn Steam Coal Company Limited, report
Printer: St. Clements Press Ltd.
(1941)
2018.135/17
Diwydiant
Powell Duffryn Associated Collieries Limited, report
Printer: St. Clements Press Ltd.
(1938)
2018.135/27
Diwydiant
Powell Duffryn Associated Collieries Limited, report
Printer: St. Clements Press Ltd.
(1938)
2018.135/23
Diwydiant
The Powell Duffryn Steam Coal Company Limited, report
Printer: St. Clements Press Ltd.
(1938)
2018.135/14
Diwydiant
Welsh Associated Collieries Limited, report
Printer: St. Clements Press Ltd.
(1940)
2018.135/39
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