Rhif ArchifTeitlLefelDisgrifiadCyfrwngDelweddauRhif Archif6188574TeitlSC122 - RCAHMW Swansea Canal Publication CollectionLefelItemDisgrifiadMeasured drawing showing Cyfyng water overflow and outlet at Ystalyfera, produced by J.D. Goodband, 1979.CyfrwngGraphic.DelweddauyRhif Archif6188575TeitlSC123 - RCAHMW Swansea Canal Publication CollectionLefelItemDisgrifiadPreliminary measured drawing showing Cyfyng water overflow and outlet at Ystalyfera, produced by S.R. Hughes and E.T. Richards, undated.CyfrwngGraphic.DelweddaunRhif Archif6188576TeitlSC124 - RCAHMW Swansea Canal Publication CollectionLefelItemDisgrifiadProvisional sketch showing Cyfyng water overflow and outlet at Ystalyfera, produced by S.R. Hughes, undated.CyfrwngGraphic.Delweddaun
