The above reminded me of an earlier post of mine about the SS (as we always called it) and how amazed I was that any Government department could keep records (even trivial stuff) so efficiently for decades. Who transferred the information from our 'green cards' onto Eggy's magnetic tape as I can't recall seeing any computer terminals in the Council Office Annex ... maybe, the counter gadgie had a 'hidden' keyboard below the desk linked to The Ministry mainframe.