Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Horse and Sledge, 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).
This type of sled was to be replaced by railways as soon as the technology was available.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.