Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
East Moors Works, report
Single page, typed in black ink on white paper. Blast furnace stoves waste gas analysis, samples taken 20/4/48 and 21/4/48.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.