Ah I found a mistake
(b) Telegraph
(1) Delay the transmission and delivery of telegrams to enemy destinations.
(2) Garble telegrams to enemy destinations so that another telegram will have to be sent or a long distance call will have to be made. Sometimes it will be possible to do this by changing a single letter in a word—for example, changing “minimum” to “maximum,” so that the person receiving the telegram will not know whether “minimum” or “maximum” is meant.
Surely the intended word is “manimum” because it’s one letter from minimum and one letter from maximum.
In case anyone else wants to look them up, it’s spelled with a third “i” instead of “e” Parmigiani Fleurier