This may be of limited interested, but here's an example of how a "slow order" would appear in the dispatchers' train order book on the south end. You would get all of the offices on the dispatcher's line at the same time (Rougemere had to be patched in from the "bell" phone), giving each office its address and then all copying the body of the order as you were writing and dictating it. Then each operator would repeat it back in the order they were addressed as the dispatcher underscores each word and figure to check for accuracy. Stations, directions and numbers had to be spelled letter by letter. If no errors, the dispatcher says "Complete" giving the time and his/her initials. Since slow orders were normally delivered to multiple trains over a period of time, the dispatcher's directive to each operator was "copy a bunch." Since the orders were copied on tissue type paper using double sided carbons, the operator would make as many copies as possible in one writing. You could usually get around 10 readable copies if you pressed really hard, or used a typewriter. My how things have changed, although this procedure lasted into the mid 80's!!
https://www.dropbox.com/s/lbha2ypchirtygp/1236168_192255584287494_1830718176_n.jpg?dl=0