Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
The Penrhyn Quarry (booklet)
18 page booklet with diagrams and b/w photographs. Describes the geology, history, uses of slate etc.
Pwnc
Diwydiant
Rhif yr Eitem
1998.68/3
Mesuriadau
Meithder
(mm): 175
Lled
(mm): 115
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.