Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Maindy Colliery, plan
Plan of workings in Lower Seam, Maindy Pit, 1904.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.
Amgueddfa Cymru
Plan of workings in Lower Seam, Maindy Pit, 1904.