Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Questionnaire on the quality of blast furnace coke
The questionnaires stapled together. Typed in black ink on cream paper. Full title: 'Coke Producers Return - Coke for Basic Iron. Questionnaire: The quality of blast furnace coke.' Questionnaires containing data for 4th quarter 1949 (x2) and for the 4th Quarter 1950 for Guest Keen Baldwins Iron & Steel Co. Ltd., East Moors Works, Cardiff.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.