Archif6494952TeitlAdditional InformationLefelBatchDisgrifiadGlyn-dyrys Lock No.4/5 and Lock Cottage, Glamorganshire Canal, 4 sheets - Plan, cross-section, elevation and site plan of lock remains, tunnel, ty bach and cottage, by B. A. Malaws and D.K.Leighton, between December 1978 and October 1979. Marked Site 94.CyfrwngGraphic.Delweddaun