OSBM Bolt: Neyland, Drydock, Transfer Bolt 

OSBM TRANSFER BOLT E CORNER DRYDOCK (6.3124m ODN, 3rd order, levelled 1971).
Location
Grid reference: SM 9688 0522.
Landranger 157: St David's & Haverfordwest.
Landranger 158: Tenby & Pembroke.
Structure: Unknown.
Waypoint: OS2864.
Neighbouring Flush Brackets
The nearest fundamental bench mark is Haverfordwest (1969),
10.52km to the north.
Location
Grid reference: SM 9688 0522.
Landranger 157: St David's & Haverfordwest.
Landranger 158: Tenby & Pembroke.
Structure: Unknown.
Waypoint: OS2864.
Neighbouring Flush Brackets
| S7941 | Pembroke Dock, Barracks 1.29km to the south. |
| S7942 | Pembroke Dock, Council Offices 1.69km to the south. |
| S0591 | Burton, Church 1.71km to the east. |
| S7830 | Newton Mountain, Hill Crescent 3.13km to the northeast. |
| S0590 | Sardis, Baptist Chapel 3.58km to the north. |
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