Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Graigola Merthyr Smokeless Coal (booklet)
Content summary - history of the Graigola Merthyr Company and the uses of Graigola coal. Also contains various advertisements for local companies. 24 pages, illustrated thoughout. Undated.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.