Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Oakeley slate quarry, photograph
Black and white photograph of a drawing showing an early example of pillaring to support the roof of the workings - from the diary of Samuel Holland who worked a quarry at Blaenau Ffestiniog about 1840.
Pwnc
Diwydiant
Rhif yr Eitem
52.465/3
Derbyniad
Donation
Mesuriadau
Meithder
(mm): 208
Lled
(mm): 256
Techneg
black and white (monochrome photograph)
photograph
Deunydd
papur
Lleoliad
In store
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