Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Oakeley slate quarry, photograph
Hammering the 'plug and feathers' - a balanced wedge used to start a crack along the cleavage - so that a block can be set free.
Pwnc
Diwydiant
Rhif yr Eitem
52.465/20
Derbyniad
Donation
Mesuriadau
Meithder
(mm): 300
Lled
(mm): 252
Techneg
black and white (monochrome photograph)
photograph
Deunydd
papur
Lleoliad
In store
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