Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Merthyr Vale Colliery, plan
Hand drawn and printed details in blue ink on cream paper. Merthyr Vale Colliery plan showing electrical equipment in development drivages (not dated).
Pwnc
Diwydiant
Rhif yr Eitem
87.229I/2
Mesuriadau
Meithder
(mm): 578
Lled
(mm): 463
Dosbarth
trade union/industrial relationsNid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.