Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Taff Merthyr Colliery, plan
Taff Merthyr Colliery Boring Chamber Scale 2 feet to an inch and 40 feet to an inch.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.
Amgueddfa Cymru
Taff Merthyr Colliery Boring Chamber Scale 2 feet to an inch and 40 feet to an inch.