File:Ordnance Survey One-Inch Sheet 171 London SE, Published 1940.jpg
![File:Ordnance Survey One-Inch Sheet 171 London SE, Published 1940.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Ordnance_Survey_One-Inch_Sheet_171_London_SE%2C_Published_1940.jpg/515px-Ordnance_Survey_One-Inch_Sheet_171_London_SE%2C_Published_1940.jpg?20180618092326)
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