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OSBM Bolt 
OSBM Bolt on concrete block, NE side of road, 28' SE from production of fence.
Location
Grid reference: TQ 6932 6305.
Landranger 177: East London, Billericay & Gravesend.
Landranger 178: Thames Estuary, Rochester & Southend-on-Sea.
Landranger 188: Maidstone & Royal Tunbridge Wells.
Structure: Concrete block.
Waypoint: OS0112.
Neighbouring Flush Brackets
The nearest fundamental bench mark is Snodland,
838.15m to the west.
Third Geodetic Levelling, England & Wales (1950-68)
This bench mark was used during the Third geodetic levelling, England & Wales. It was included on the Hatfield Peverel to Snodland, Snodland to Isle of Thanet and Snodland to Wye levelling lines. The surveyor's description was OSBM Bolt on concrete block, NE side of road, 28' SE from production of fence.
Location
Grid reference: TQ 6932 6305.
Landranger 177: East London, Billericay & Gravesend.
Landranger 178: Thames Estuary, Rochester & Southend-on-Sea.
Landranger 188: Maidstone & Royal Tunbridge Wells.
Structure: Concrete block.
Waypoint: OS0112.
Neighbouring Flush Brackets
| G5088 | Lad's Farm 616.85m to the west. |
| G2632 | Holborough 1.22km to the east. |
| G1827 | Holborough 1.25km to the east. |
| G2631 | Halling 1.46km to the northeast. |
| 2926 | Snodland 1.49km to the southeast. |
Third Geodetic Levelling, England & Wales (1950-68)
This bench mark was used during the Third geodetic levelling, England & Wales. It was included on the Hatfield Peverel to Snodland, Snodland to Isle of Thanet and Snodland to Wye levelling lines. The surveyor's description was OSBM Bolt on concrete block, NE side of road, 28' SE from production of fence.
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