Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
British Coal
Diwydiant
Inbye News. The Newspaper For Colliery Supervisory Staff.
Publisher: British Coal
(1987)
1996.19/26
Diwydiant
Powered Supports Operator Safety Procedure (booklet)
Publisher: British Coal
(09/1993)
2001.1/783
Diwydiant
Marine/Six Bells Colliery rescue & fire fighting plans
Production: British Coal
(23/09/1988)
2014.29
Diwydiant
British Coal, South Wales area, publicity material
Production: British Coal
(12/1986)
87.68I/16
Diwydiant
British Coal, South Wales area, publicity material
Production: British Coal
(1987)
87.68I/6
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