Trig Points at Sish Lane Stevenage

[drum]

I am trying to locate the trig point in Sish Lane Stevenage and I am getting confused.
It appears from the 16 photos on your site that there are 2 points one to the north outside the perimeter of Larwood School the other at the south side within the ground of the school. Any help would be of interest.

I have now sorted this out the trig point is the north one on the perimeter fence. The one shown on the south side in school grounds is not a trig point. The 16 photos shown on this site which some are shown taken in the school grounds does not relate to Larwood school but to Lonsdale school located to the north of Larwood school and was was demolished a few years ago.