Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Underground Support Systems (booklet)
National Coal Board training manual providing guidance on roof, coal face, and roadway support systems. 84 page illustrated booklet.
Pwnc
Diwydiant
Rhif yr Eitem
2001.1/887
Creu/Cynhyrchu
National Coal Board Industrial Training Branch
T. & A. Constable Ltd
Dyddiad: 1979
Derbyniad
Donation, 1/2/2001
Mesuriadau
Meithder
(mm): 222
Lled
(mm): 141
Deunydd
cerdyn
papur
Lleoliad
In store
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.