Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Oakeley slate quarry, slide
Lantern slide of a drawing showing an early example of pillaring to support the roof of the workings at Oakeley slate quarry, Blaenau Ffestiniog. From the diary of Samuel Holland.
Pwnc
Diwydiant
Rhif yr Eitem
2018.197/102
Mesuriadau
Meithder
(mm): 82
Lled
(mm): 82
Uchder
(mm): 3
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.