Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Photograph (print)
Colour photograph showing Bill O'Connor, lecturer in mining at Trefforest Polytechnic, (back row, third from left) with a group of students on a field trip at an unknown mine.
Pwnc
Diwydiant
Rhif yr Eitem
2010.59/23
Mesuriadau
Meithder
(mm): 89
Lled
(mm): 123
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.