Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Hoover factory march, Merthyr Tydfil, photograph
Union officers on steps amongst crowd gathered at the Civic Centre, Merthyr Tydfil.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.