Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Tredegar Iron & Coal Co. Ltd., glass negative
Cambrian Collieries power station interior showing small single cylinder horizontal steam engine and D.C. generator.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.