Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
N.C.B. roof control department, plan
Full title :- National Coal board roof control department - the Neuhaus setting device. Plan printed on cream paper.
Pwnc
Diwydiant
Rhif yr Eitem
1993.24/2
Mesuriadau
Meithder
(mm): 330
Lled
(mm): 205
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.