Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Ebbw Vale Works, test report sheet
Typed in black ink on cream paper. Average of results of sizing tests on Cardiff High Phos. Coke. Dated 5th November, 1953.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.