That is absolutely fascinating. Thank you so much for taking the trouble to type it all out for us.
I hope you do not mind me asking about the blue on khaki embroidered title. The IWM version I saw did not come with a description of date, though I had always presumed it was from the 1917 'survey'. It is often described as WW1 in online auctions. For example,
here
May I ask what your opinion is? If it were WW1 period, this would seem to contradict your statement that the London Scottish never wore embroidered titles at that period. I have, admittedly, never seen them in photos from the time.
Many thanks,
Chris