Labelled sheet showing a sketched photogrammetrically-derived horizontal cross-section of the keep at Norham Castle surveyed at level one, with four vertical photogrammetrically-derived cross-sections A-A to D-D
- Date:
- Oct 1984 - Jan 1985
- Location:
- Norham Castle, Norham, Northumberland
- Reference:
- MP/NOC0165
- Type:
- Photogrammetric Survey