Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
National Coal Board, press release
Press release relating to the installation of new machinery at Six Bells Colliery, advancing tunnels in the Garw rock heading in record times. Dated 9 November 1978. One page.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.