Isle of Thanet to Guestling (Third Geodetic Levelling, England & Wales (1950-68))
| Mark Number | Description | Type | Status | Photo |
|---|---|---|---|---|
| 1 | Isle of Thanet FBM | FBM | Destroyed | No photo |
| Mark Number | Description | Type | Status | Photo |
|---|---|---|---|---|
| 1 | Isle of Thanet FBM | FBM | Destroyed | No photo |