I hope Lon More isn't suggesting I'm old - these 10 dioptre reading glasses are just fashion accessoies I tell you!!
Sometime back there was an excellent series of articles in GATCO Magazine written by one of the real oldies - Arnold Field I think - on the history of British ATC. Sadly Arnold is no longer with us, as is the case with many of the stalwarts from the "beginning". Of course, there's always the book "Heathrow ATC - the first 50 years" and another dealing with the history of Heathrow, although that is not wholly inclined towards ATC.