Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
East Moors works blast furnace department, notes
Handwritten in pencil on cream, lined paper. 3 pages attached with a paperclip. Notes re. the properties of foundry iron, dated 23/3/60.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.