Disgrifiad
Measured drawings showing plan and elevation view of Cwm-Tawe-Isaf Overbridge at Ynysmeudwy, produced by S.R. Hughes and E.T. Richards, 1974.
Cofnod Casglu
SC - RCAHMW Swansea Canal Publication Collection
Cychwynnwr
Stephen R. Hughes, Elizabeth T. Richards, RCAHMW