Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Which Explosive Should I Use? (leaflet)
Full title - Which Explosive Should I Use? A Guide to the Coal Mining Explosives Made by ICI. One sheet of card, folded.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.