Many housing estates throughout London are surrounded by black steel and mesh railings with peculiar notches around the edges.
These steel railings originally functioned as stretchers used to carry the wounded during the Second World War.
The curves or the notches you see were the legs upon which the stretchers were laid on the ground.
Then someone had this bright idea of welding together these stretchers and creating fences out of them.
Many of the surviving railings today are in poor condition.
Others were removed by local authorities due to increasing degradation.
As starters, they have began cataloguing the locations of these railings.
you’re able to check them out ontheir website.
Photo credit: The Sun
