Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
O.S. map of Williamstown
Ordnance Survey Map. Edition of 1921. Glamorgan Sheet XXVII.S.E. Scale - six inches to one statute mile or 880 feet to one inch = 1/10560. Penygraig, Porth, Williamstown
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.