or Post 75
Posts 74 and 75 both probably lost forever during the building of the M25 which can be seen in the background of this image. The Wraysbury (or Wyrardisbury) River may well have been moved by a few yards.
Similarly Post 149 probably disappeared during the building of the M25. Compare with Posts 80 and 81 which appear to have been relocated during the building of the Wraysbury (or Wyrardisbury) Reservoir
Posts 74 and 75 both probably lost forever during the building of the M25 which can be seen in the background of this image. The Wraysbury (or Wyrardisbury) River may well have been moved by a few yards.
Similarly Post 149 probably disappeared during the building of the M25. Compare with Posts 80 and 81 which appear to have been relocated during the building of the Wraysbury (or Wyrardisbury) Reservoir