Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Tredegar Iron & Coal Co. Ltd., glass negative
Cambrian Collieries power station interior showing Belliss & Morcom triple expansion stationary engine driving Seimens alternator.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.