One more item for the net tonight. Mike Burns suggested we also take a look at the RadioGram form.
The other file is the information about originating a message and QNx signals for handling messages on CW. The “Q” signals are shorthand for use in CW and perhaps some digital modes. Although some of them have made their way in to phone conversations, it is more practical to just say it in plain text. The file has some other information you might find useful.
Pads of RadioGram forms are still available: https://www.arrl.org/shop/Message-Forms-Pad/