Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Guest Keen & Nettlefolds Ltd., Plan
Plan of Bessemer 'C' Cogging and Rail Mill, Old Works, Dowlais Works, 17.5.22. Scale 1/16" = 1 foot Tracing no.9235.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.