In the 60s it was to be found in Ops Centres and Flight Planning Sections, as well as but to a lesser extent Towers and ATCCs. I spent many a happy Sunday afternoon on watch at Bruggen, Leuchars and Prestwick, learning how to distinguish between a ferry and a liner (count the lifeboats), or wondering about the exposed nature of the fuel tanks on Soviet tanks, after ringing the Met. Office to tell them it was raining had palled. Those who have copies should consider themselves to be lucky bunnies indeed, especially as it was the same age I am although I intend to go on for some time yet...
Of course, the locations I've mentioned had different interests: armoured ground formations at Bruggen, Bear-like intruders down the ADIZ at Leuchars, and stray Aeroflot airliners with reconnaissance cameras slung underneath at Prestwick, to mention but a few without over-exciting the MOD mods.
