There are quite a number of nice photos of pre-war 16Hs but no specific motorcycle content so far. I haven't finished it yet.
There is lots of detail on Ordnance operations and I think that it's going to be useful for those of us researching the supply and delivery of motorcycles. I've already got a couple of new lines to follow up.
Sometimes the answers to the big puzzles, especially in interpreting documents, lie within the small clues.