Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Colliery Skip Winding (leaflet)
Content summary - the advantages of skip winding in bringing coal from pit bottom to the surface. Printed on four sides of a folded sheet of paper. Undated.
Pwnc
Diwydiant
Rhif yr Eitem
2017.38/468
Mesuriadau
Meithder
(mm): 278
Lled
(mm): 210
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.