Oh what joy those charts brought... When I was a kid my chums had pics of football teams, or Muriel Young on their bedroom walls. Me, being quite normal, had charts of the UK Airways System. Epsom, Watford and Dunsfold Radio Ranges..... Red One, Green One all bring back memories. London Airport is there, but no mention of that landing strip near Crawley..?
The USAF KB-50Js going from Norfolk to Chatteroux (sp?) used to read-back "Brookmans Park, Kilburn, Epsom, DunsFORD". Never did understand why they often got it wrong.