Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Notebook
Notebook containing notes on mining ventilation. Written for mine official’s course. Light brown cover, stapled at centre.
Pwnc
Diwydiant
Rhif yr Eitem
2017.13/9
Mesuriadau
Meithder
(mm): 167
Lled
(mm): 102
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.