Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Dimensions of furnaces at Cardiff & Tonawanda
A comparison of the dimensions of furnaces - American (at Tonawanda) and Cardiff No.1 furnace. Typed in black ink on white paper.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.