Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Data on Carbon Hearths (notes)
Typed in black ink on cream paper. Two pages stapled together. Notes entitled 'Data on Carbon Hearth Furnaces'. Includes information relating to the installation of furnaces at Briton Ferry, Ebbw Vale, Margam, Cardiff, Northamptonshire, Lincolnshire, the North East Coast and Scotland.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.