English
Beta
Hygyrchedd
Hafan
Amdanom
Chwilio
Orielau
Map
Cymorth
Cysylltwch
Cofnod Archif
Canlyniadau
Safle Chwilio Uwch
Nid oes gennych resi chwilio datblygedig. Ychwanegwch un trwy glicio ar y botwm '+ Ychwanegu Rhes'
+ Ychwanegu Rhes
Chwilio
Ail Gychwyn
Chwarel y Penrhyn
Investigators' Photographs
960329 - Investigators' Photographs
960329 - Investigators' Photographs
Manylion
Hierarchaeth
Safleoedd Cysylltiedig
Rhif Archif
6427648
Disgrifiad
Water balance system 'Edward', water tank in foreground, Penrhyn Slate Quarries.
Cofnod Casglu
Investigators' Photographs
Cyfrwng
Photo.
Cychwynnwr
Stephen R. Hughes
Dyddiad
1996-09-09