Cut Bench Mark & Bolt - Wandsworth High Street, London, UK - European Historic Survey Stones, Monuments and Benchmarks on Waymarking.com

Data obtained from the OS web site...

A "window" has been cut into the rendering around the base of the church allowing the mark to be seen.  Even then it is difficult to identify the mark so the datum line, arrow and bolt have been identified with grey lines and a red circle on one of the photos. The bolt is in good condition but the cut mark has almost completely disappeared.

The Bench Mark Database website carries further information with respect to this mark:

On S.W. angle of tower of All Saints' Church, High Street, Wandsworth [RLL, Surbiton to British Museum, Mark No. 54, 18.708 ft. above Newlyn datum, (previously levelled as 20.022 ft. above Liverpool datum)]; All Saints' Church, High Street, Wandsworth [Longfield Mark 55]; CUT MARK: ALL SAINTS CH N SIDE WANDSWORTH HIGH ST S FACE SW ANG (LONGFIELD MARK NO55) (5.6614m ODN, 0.4m AGL).

Location
Grid reference: TQ 2545 7471.
Landranger 176: West London, Rickmansworth & Staines.
Structure: Church / Chapel.
Waypoint: BT0901.

Neighbouring Bench Marks
BM Wandsworth, Vine House, Armoury Way 120.42m to the north.
BM Wandsworth, #187 Wandsworth High Street 134.16m to the southwest.
RIVET Wandsworth, River Wandle Bridge,Wandsworth High St 136.01m to the east.
BM Wandsworth, Putney Bridge Road 184.39m to the west.
BM Wandsworth, #8 West Hill 228.04m to the west.
The nearest fundamental bench mark is Croydon, 15.71km to the southeast.

Re-levelling Of Greater London (1931-34)
This bench mark was used during the Re-levelling of Greater London, and was levelled with a height of 18.7080 feet [5.7022 metres] above mean sea level (Newlyn datum). It was included on the Surbiton to British Museum levelling line. The surveyor's description was No. 54. On S.W. angle of tower of All Saints' Church, High Street, Wandsworth (p46).

Logged Visits
Visited on 3rd November 2013 by dave41. Condition: Good.
Re-visited this mark,had a closer look into the cement hole,shone a torch in and could see the bolt top right hand corner of the hole.The bolt is to the right of the horizontal line.

Visited on 24th October 2013 by dave41. Condition: Good.
The mark is in a window cut into the cement render,could only see the cut mark,no sign of a bolt.