London’s Pocket Parks: Cossall Park, SE15

This is a relatively new park in Peckham being about 50 years old created in the 1970s as part of housing clearance and council building.One of the unexpected mysteries of the park is exactly when was it created. This shouldn’t be a difficult thing to work out, as it’s a fairly new park, but the best I can do is to say that it was created sometime in the middle of the 1970s, and apparently related to the cancelled plans for the Ringway around London.
My best assumption in the absence