that was my station!!
I went to London in the summer of 1989 for a six week program at the University of London. Russell Square was the station I used to get around & I stayed just down the block (wasn't studying economics though). Didn't have an elevator operator by then, you pushed the button yourself. I always giggled at the last stop on the Piccadilly Line headed north is a place called Cockfosters which can be seen at the front of the train as it pulls into the station during the film.
If 6 turned out to 9, I don't mind..