Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
East Moors Works, blast furnace report
Report contained inside a yellow card file. Report on taphole practice at No.1 blast furnace, Cardiff. Nine-page report, typed in black ink on cream paper, plus one graph.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.