Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
East Moors works blast furnace department, notes
Four pages handwritten in pencil on cream, lined paper. Notes "Value of Dannemora ore as against Itabira ore." Dated 5/10/64.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.