Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Dinorwic Slate Quarries, map
Tracing taken from o.s. sheets 1914 edition Caernarfon sheets XVII.5 & XVII 9 August 1973. Scale 1/2500 being 25.344 inches to a statute mile or 208.33 fee to one inch.
Pwnc
Diwydiant
Rhif yr Eitem
87.247I/3
Derbyniad
Collected officially, 31/12/1987
Mesuriadau
Meithder
(mm): 1253
Lled
(mm): 760
Techneg
dyeline
Deunydd
papur
Lleoliad
In store
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.