Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
O.S. map of Caernarvonshire
Ordnance Survey map section (photocopy) Dinorwic Slate Quarries, Allt Ddu Slate Quarry; Vivian Slate Quarry (Llanberis) (not dated) 17 copies
Pwnc
Diwydiant
Rhif yr Eitem
88.86I/1 (1 - 17)
Historical Associations
Association Type: Slate quarries
Lle: Dinorwic slate quarries
Association Type: Slate quarries
Lle: Vivian slate quarry
Derbyniad
collected officially, 1988
Mesuriadau
Meithder
(mm): 380
Lled
(mm): 254
Deunydd
papur
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.