I am making the usual fair copy to send to St Albans, but the instruction to 'draw a container around each of the seven constituent items' is difficult to execute. Even with red ink, the rectangle does not stand out very well . The bar lines get in the way. What I would like to do is to highlight the items, but I think that would be marked wrong.
Now to return to 4775. The coding part is one of the most tiresome things I have ever attempted, and I inevitably make mistakes and have to go back to the start. I am keeping a log which might help. This is the most difficult puzzle I have ever attempted. If I don't succeed today I will have to give in.