Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Groesfaen Colliery (report)
Report containing specifications of the Groesfaen and Penygarreg shafts at Groesfaen Colliery. Undated. Three pages, stapled.
Pwnc
Diwydiant
Rhif yr Eitem
2017.38/436
Creu/Cynhyrchu
National Coal Board, South Western Division
National Coal Board
Derbyniad
old stock, 27/2/2017
Mesuriadau
Meithder
(mm): 330
Lled
(mm): 205
Deunydd
Paper
Metal
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.