Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
East Moors works blast furnace department, notes
No.1 furnace blowing out and cooling down. Data for March 11th-21st 1960. Two pages stapled together. Typed in black ink on white paper.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.