Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Ebbw Vale Works, test report sheet
Typed in black ink on cream, company headed paper (Richard Thomas & Baldwins Limited). Five pages stapled together. Average analyses of samples of coke, flue dust and slag sampled daily at the blast furnaces during the week ending 1st December, 1956.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.