Rhif Archif
6426970
Disgrifiad
Penrhyn Slate Quarry, Water balance lift, 'Edward': Photo survey comprising 2 B&W prints taken by S. R. Hughes, June 2001.
Enw Casgliad
Investigators' Photographs
Cyfrwng
2 prints. Photo.
Cychwynnwr
Stephen R. Hughes
Dyddiad
2001-06