Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Blasting in Collieries (booklet)
Content summary - details of the range of explosives and accessories manufactured and supplied to the coal industry by Imperial Chemical Industries Ltd. 28 page illustrated booklet, undated.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.