Spitfire crash land site 7 Sep 1940
 

I would like to locate the exact field a Spitfire (602 Squadron) crash landed on 7 September 1940. The combat report states " ... force landed 1 mile west of Wrotham".
I remember years ago in Harrow library there was a map with details of where WW2 bombs dropped and aircraft had crash landed, so I am sure there must be similar information for the Wrotham/Sevenoaks area. However not much luck with the various local history societies.
I wonder if anyone from pprune can help?
Mike

There's a memory - Harrow Library - used to walk past it on my way to school, late 50s/early 60s (Harrow County)