I have some material for you which is attached. We moved house and finally I went through my archives and retrieved them.

First two ('IMP') specify the implementation of record and indirection facilities in IMP which was the implementation language (hence the name) for the multi-access system (as I recall it, this was used to build the system above the core level but I can’t recall the precise separation of functions). This was presented at a conference called  'File 68' and the list of participants is one of these two documents.

Next comes the Context editor manual. You may already have this.

Finally a magazine advert, produced by ICT, with myself and Trevor Head in the background, sitting down and earnestly discussing something or other.