Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Llanover Colliery pumping arrangement
Full title - Llanover Colliery Main Pumping Plant. Schematic Diagram of Electrical Interlocks, etc. Electrical department drawing number EL-9. Dated 3 June 1931.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.