Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Technical drawing
Cast Iron Beams in tunnel on Bonc Moses Level, beams spaced 4'3" Apart [ID Beams /38' wide tunnel] scale 1/16 = 1"
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.