Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Tydraw Colliery, plan
Full title - Tydraw Colliery. Workings in the 3'-10" Seam. Scale 6" to a Mile. Datum for Levels 2000' B.O.D.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.