Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Bersham Colliery profile, notes
Three pages, black print on white paper. Two pages of notes with one page table giving output.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.
Amgueddfa Cymru
Three pages, black print on white paper. Two pages of notes with one page table giving output.