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