Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
East Moors Works, report
Typed in black and red ink on cream paper. Three pages attached with a paperclip. Waste gas analyses at agglomerating plant 30/3/1948, 1/4/1948 and 2/4/1948.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.