Sections from a survey of the depths of the inner moat, looking north-east through the site of the proposed bridge from ravelin to shore and looking east through the site of the proposed bridge from Landport Gate to ravelin
- Date:
- 1 Aug 1972
- Location:
- Tilbury Fort, Tilbury, Chadwell St Mary, Thurrock
- Reference:
- MP/TIL0147
- Type:
- Measured Drawing