Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Plan
Plan of lettings to Glyn and Collena Collieries showing workings in No.3 seam, not dated (4 copies) Scale : 6" to 1 mile
Pwnc
Diwydiant
Rhif yr Eitem
87.243I/66
Mesuriadau
Meithder
(mm): 425
Lled
(mm): 565
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.