Just in case anyone is interested (probably not!) and posted it here because it is relevant to the Cold War not necessarily WW2. The Envirocheck online mapping site has released a series of maps of UK cities as drawn up by the KGB between 1950 and 1997. It says they show military and other installations which do not appear on Ordnance Survey maps. I thought they may be of some interest to people doing research? Envirocheck.co.uk | Environmental Intelligence & Digital Mapping cheers, Rich.