Blast from the past you are !! Oh yes, remember you very well, used to collect your notes every morning to make sure your time was being put to good use ...
Worked in the office from 1959 >> '64 (summat like that anyway). Came back for a couple of years from around '71 >73.
You worked with our Mr. Lloyd in that top right hand corner, can see you now sticking those little letters in the trays.