Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Cwmcarn Colliery, lamp check
Circular disc with 2mm rim, central circle which is broken by rectangle at bottom of face containing a number, hole punched through top/centre of inner circle
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.