Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Merthyr Vale Colliery, document
Table charting the distances between seams in yards at Merthyr Vale Colliery.
Pwnc
Diwydiant
Rhif yr Eitem
80.108I/8
Mesuriadau
Meithder
(mm): 211
Lled
(mm): 164
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.