Gawd - yes Monica, I do remember those whizzy tube things. In fact some offices had them as well - I cannot remember where it was I worked - anyway, it was during my time with a temping agency in London just before I got married - and I regularly typed up memos and put them in a whizzy tube thing. If I remember rightly it went to a central posting office and the staff there just re-routed them into another whizzy tube thing to the office elsewhere. I think it was in Mitre Square. It was an office block that formed a square and had a connecting tunnel underground. I distinctly remember that because one of the girls there didn't like all the pigeons that collected in the square and she regularly went from one office to another via the tunnel. A very old building - whether it had anything of a religious history to it I don't know (because of the 'Mitre' bit I mean. Considering I was only a temp there that particular placing lasted something like 14 months!
Flippin' 'eck - I've gone back to about 1966 - who started this ruddy conversation? We'll blame Monica this time.