Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
East Moors works blast furnace department, notes
Single page, handwritten in pencil on cream, lined paper. Notes re. No.4 blast furnace zinc balance. Dated 4/3/61.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.