Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Gradients of the British Main-Line Railways (book)
Book containing 8 pages of text with diagrams of the gradients of various railways. Bound in blue covers.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.