Thank you All for your suggestions and Mike for having a stab at the interpretation. I wasn't expecting a full translation by anybody, after all it is part of the 'fun' of this crazy pastime, or business, if you choose to make it so.
I like the idea of the pencil and paper and leaving spaces that you gradually fill and certainly agree with the little and often and retaining the original size and clarity of the document as much as possible.
Sometimes, after scanning or downloading an image, I find that a minor adjustment to the 'backlighting', 'brightness' and finally 'sharpness' can help a great deal with interpretation.
I may post my finished interpretation, just for completeness, but don't hold your breaths, it may be a wee while!
My regards, Bill