| Cyfernod / Ref No | COB11/12/1/3 |
| Rhif Cyfeirnod Gwahanol / Alt Ref No | Formerly COB11/12/3 |
| Teitl / Title | Details of drainage scheme for Dwygyfylchi Local Board: manholes, covers, ventilators, outlet valves etc. |
| Ddisgrifiad / Description | Engineer: James Farrar, Bury. Scales given. |
| Dyddiad / Date | 1879-1887 |
| Graddau / Extent | 1 Roll |
| Lefel / Level | Item |