Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Black Vein Colliery, time book
Bound time book with entries from week ending 7th June to 13th September 1924.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.
Amgueddfa Cymru
Bound time book with entries from week ending 7th June to 13th September 1924.