Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Pamphlet
Pamphlet - Economy in Materials for Roof Support Safety in Mines Research Board. Reprinted from Colliery Guardian 26 April 1940. There is also a separate piece of paper inside the pamphlet with text, entitled 'Safety in Mines research board / War problems'.
Pwnc
Diwydiant
Rhif yr Eitem
88.165I/10
Mesuriadau
Meithder
(mm): 193
Lled
(mm): 133
Dosbarth
health and safetyNid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.