Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Treforgan Colliery (booklet)
content summary - details of the Treforgan Drift Mine Red Vein development. Five pages, stapled.
Pwnc
Diwydiant
Rhif yr Eitem
2017.38/558
Creu/Cynhyrchu
National Coal Board, South Western Division
National Coal Board
Tudor Graphic Ltd.
Derbyniad
old stock, 27/2/2017
Mesuriadau
Meithder
(mm): 216
Lled
(mm): 138
Deunydd
Paper
Card
Metal
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.