I was wondering why no highish res photos of the outside appearance of the documents at least, simply as a sort of inventory of what was there, and perhaps any dates, titles, case names on the document envelopes.

I can understand a reluctance to actually open any folded documents in dockets that have been stored in damp conditions and left for 100+ years. I've recently scanned and photographed some documents relating to my family from the 1880s, these have been stored in a tin box and were very dry and fragile. We are just keeping them in the box at present!