I sold my house to M B-M in about 1976 near Thetford. I often called into see him about one thing or another and he always offered a choice of whisky and then handing me the bottle while he held the glass so I could help myself. I noticed one day that he had a camera on the floor being used as a doorstop and I recognised it as a Zeiss Contarex as I also had had one. He did quite a lot of work for British Aerospace (or whatever it was then called) at that time.