Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Authorisation disc for men going underground
Circular red plastic disc with small hole at top. Instructions on envelope (1995.9/12) are to "hand red disk to lampman".
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.