Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Treforgan Colliery, report
Full title - 'National Coal Board. West Wales Area. Treforgan Colliery.' Report containing information under six headings; 'method of working', 'pumping', 'transport of men and supplies', 'ventilation' and 'surface premises'. One page.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.