Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Severn suspension bridge, general information
Black print on white paper, 13 points of information on the bridge on three sides of folded sheet, with cross-section and plan of bridge on fourth side.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.