Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
O.S. map of Montgomeryshire
Ordnance survey of England and Wales. Geological Survey of Great Britain No.LX N.W Montgomery 60. Printed from an electrotype. Geological key on left side. Scale of one inch to a statute mile.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.