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OSBM Bolt 
OSBM Bolt on concrete block, SW side of road, 6' NE from junction of hedges.
Location
Grid reference: NT 8997 6210.
Landranger 67: Duns, Dunbar & Eyemouth area.
Structure: Concrete block.
Waypoint: OS0312.
Neighbouring Flush Brackets
The nearest fundamental bench mark is Mordington,
6.32km 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 Dunbar East to Mordington levelling line. The surveyor's description was OSBM Bolt on concrete block, SW side of road, 6' NE from junction of hedges.
Location
Grid reference: NT 8997 6210.
Landranger 67: Duns, Dunbar & Eyemouth area.
Structure: Concrete block.
Waypoint: OS0312.
Neighbouring Flush Brackets
| G2132 | Heugh Head 1.39km to the west. |
| G5156 | Ayton, High Street 2.10km to the east. |
| G2134 | Ayton 3.02km to the southeast. |
| 2427 | Peelwalls 3.28km to the southeast. |
| G5157 | Ayton, Railway Bridge 3.40km 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 Dunbar East to Mordington levelling line. The surveyor's description was OSBM Bolt on concrete block, SW side of road, 6' NE from junction of hedges.
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