Flush Bracket 1953: Rocksley   

Flush Bracket on S.W. buttress of bridge over railway, N.W. side of road [2GL] - LandLine: no BM.

Location
Grid reference: SP 8338 3890.
Landranger 152: Northampton & Milton Keynes, Buckingham & Daventry.
Structure: Bridge.
Waypoint: FB1953.

Neighbouring Flush Brackets

1954	Loughton 470.96m to the south.
1952	Bradwell 775.24m to the north.
1955	Loughton 1.24km to the south.
658	Milton Keynes 2.27km to the north.
1956	Shenley Church End 2.28km to the south.

The nearest fundamental bench mark is Great Linford, 3.81km to the northeast.

Second Geodetic Levelling, England & Wales (1912-21)
This flush bracket was used during the Second geodetic levelling, England & Wales, and was levelled with a height of 272.1300 feet [82.9452 metres] above mean sea level (Newlyn datum). It was included on the Great Linford to Wallingford levelling line. The surveyor's description was Flush Bracket on S.W. buttress of bridge over railway, N.W. side of road.