Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Collection of eng./tech. drawings re docks
Technical drawing Ferro concrete construction, King Edward's Dock, Swansea (Hennierique system) 1907
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.