Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
British Transport Commission, Newport Docks diagm
Hand drawn diagram printed in black on cream paper. British Transport Commission, Mech & Elec Engrs. Department, South Wales Docks, revised single line diagram of 11KV ring main at Newport Docks. Drawing number 8546.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.