Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
The Railway Magazine
Photocopy of extract from The Railway Magazine "Gradients of the British Main Line Railways", 1938. Five pages held together by a paperclip.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.