Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Pit Ventilation (booklet)
33 page illustrated booklet, stapled at centre. Content summary - reasons for mine ventilation, the devices used to ventilate mines and monitor air flow.
Pwnc
Diwydiant
Rhif yr Eitem
2001.1/812
Derbyniad
Donation, 1/2/2001
Mesuriadau
Meithder
(mm): 152
Lled
(mm): 202
Deunydd
cerdyn
papur
metel
Lleoliad
In store
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.