Rhif Archif
6484263
Disgrifiad
Black and white photo survey showing White Rock Tunnel, taken by Iain Wright, 20th November 1991.
Enw Casgliad
NMR Site Files
Cyfrwng
4 photos. Photo.
Cychwynnwr
Iain N. Wright, RCAHMW
Dyddiad
1991-11-20