Re all this talk of Air Traffic Control. I was never an ATCO, but filled in my early days at RAF Thornhill (5FTS), S. Rhodesia as an Air Traffic Control Assistant, probably the lowest for of life in the control tower apart from the tea lady. Anyway here's what I looked like in 1951 as I manned the fiendishly complicated ATC in the absence of an ATCO.
The board was designed locally to try and keep tabs on the various aircraft as they started, taxied, took-off and either did circuits and bumps of left the local area and vice-versa as they returned - it never did with any degree of success what it was designed to do, but as Thornhill had 27 Chipmunks, 60 Harvards and a variety of Ansons on strength it was not surprising!
...and the Thornhill ATC.