Parish Boundary Stone, near Lead Mill House Copley (Copley) - Source of Reference
| No. | Originator(s) | Date | Title | Notes |
|---|---|---|---|---|
| 1 | Department of Environment, English Heritage, Historic Buildings and Monuments Commission | 1950 | List of buildings of special architectural or historic interest, also known as "Greenbacks" | LB Volume, Map & Item: 1400, 3, 48 |
| 2 | Durham County Council | Parish Boundary Stone, nr Lead Mill House, Copley | ||
| 3 | Durham County Council | Parish Boundary Stone, Copley |