Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Taf Fechan Water Supply Board, booklet
"Historical Information and Description of Board's Water Undertaking." 36 page booklet with five fold out plans at back (one loose).
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.