Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Gwaun-Cae-Gurwen Colliery, blueprint
Blueprint titled 'Proposed Coal Washing Plant for Messrs Gwaun Cae Gurwen Colliery Co. Washing Capacity 80 Tons per Hour. Scale 1:200'. No. A1612. Dated 30 June 1925.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.