I know -- we can't. But in case they ever come back:
I've scanned this text from Sarah Augusta Taintor and Kate M. Monro's The Secretary's Handbook: A Manual of Correct Usage (Macmillan, 1949), a library book-sale find.
This is not a telegram (The Retro-Gram)
Dowdy. World. Mourns. End. Of. Era. Stop. (The end of the telegram)