| Cyfernod / Ref No | COB11/12/4/5 |
| Rhif Cyfeirnod Gwahanol / Alt Ref No | Formerly COB11/12/27 |
| Teitl / Title | Alterations to the A55 Chester Holyhead Road at Pen-y-Clip. |
| Ddisgrifiad / Description | Scales given |
| Dyddiad / Date | n.d. [?1920s] |
| Graddau / Extent | 1 Roll |
| Lefel / Level | Item |