Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
National Union of Mineworkers, letter
Letter from the Secretary of the N.U.M. authorising Blaenavon Lodge to co-ordinate picketing activity. Undated. One page.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.