Commercial Cable Telegram
Finally found original blanks of the correct antique Postal Telegram which is used in the journal ;)
They are from Clarence H. Mackay / The Mackay System and back from the 1930s or 1940s:
Here is the backside of the correct telegram - it’s upside down related to the front:
In my journal:
Screencap of the pilot:
And again the front of the telegram:












