Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Pen-yr-Orsedd Slate Quarry, 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).
Pwnc
Diwydiant
Rhif yr Eitem
2012.60/163
Mesuriadau
Meithder
(mm): 50
Lled
(mm): 50
Uchder
(mm): 2
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.