Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Water Balance Incline, film slide
Collection of slides forming lecture "Rails in the Slate Industry" by D.R. Geering, UMIST 3rd year Mechanical Engineering Projects, c.1975 (copy of lecture notes in related material).
Aberllefenni Slate Mine, used for raising slate rubbish from the lowest adit level to a tip in the middle of the valley.
Pwnc
Diwydiant
Rhif yr Eitem
2012.60/131
Mesuriadau
Meithder
(mm): 50
Lled
(mm): 50
Uchder
(mm): 2
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.