Cut Mark: Southampton, Empress Dock, Engine House   

Old B.M. on N.E. angle of Engine House [2GL] - estimated location.

Location
Grid reference: SU 4274 1000.
Landranger 196: The Solent & The Isle of Wight, Southampton & Portsmouth.
Structure: Unknown.
Waypoint: BM1864.

Neighbouring Bench Marks

BM	Southampton, Empress Dock, Tide Gauge 31.62m to the north.
BM	Southampton, Empress Dock, Tide Pole 31.62m to the north.
BM	Southampton, Mortuary 1.13km to the northwest.
BM	Southampton, French Street 1.32km to the northwest.
BOLT	Southampton, St. Michael's Church 1.53km to the northwest.

The nearest fundamental bench mark is Southampton (O.S.O.), 2.88km to the north.

Second Geodetic Levelling, England & Wales (1912-21)
This bench mark was used during the Second geodetic levelling, England & Wales, and was levelled with a height of 15.0760 feet [4.5952 metres] above mean sea level (Newlyn datum). It was included as a side level on the Southampton to Tide Gauge, Empress Dock, Southampton levelling line. The surveyor's description was Old B.M. on N.E. angle of Engine House.