Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Deep Navigation Colliery, plan
Full title - Plan of Proposed Builg Site near Messrs Harris' New Colly. Scale 40ft = 1 inch. Undated but probably late 1870's-early 1880's.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.