Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
What Every Colliery Official Should Know (booklet)
Full title - What Every Junior Official Should Know. Extracts from Production Department Instructions issued by the National Coal Board. 43 page booklet with orange covers, stapled at centre. Blaenavon Mine stamp on front cover.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.