A phonetic alphabet is used for all verbal communication regarding
menus. This alphabet is different from the phonetic alphabet currently in
use in the U.S. Army. It is as follows:
Apple Freddie Kenneth Peter Unicorn
Butter George London Quagger Vinegar
Charlie Harry Monkey Robert Willie
Dan Ink Nuts Sammy X ray
Edward Johnny Oliver Tommy Yellow
In order to identify the enemy organization whose message is being
decoded, names have been arbitrarily assigned to their keys. Approximately
200 such names have already been given. They are broken down into 10
general classifications as follows:
1. Animals - German Air Force, Operations.
2. Birds - German Army.
3. Colors - Miscellany of German Air Force and Army. Earliest
4. Fish - German Navy.
5. Flowers - German Air Force, Administration.
6. Fruits - Gestapo and Army Intelligence.
7, Insects - German Air Force, Operational.
8. Limestone - Diplomatic Spy fling.
9. Vegetables - Air Service, Weather.
10. Miscellaneous - All Others.
The decoding handled in USA is broadly divided amongst the animal, bird and
insect keys with small amounts of the others. Little or no menus are
received for the fish limestone and vegetable keys.
PREPARATION OF MENU.
The first step after the receipt of the menu on the teleprinter is to
make up the graphical representation of the menu. The number of copies to
be made up depends upon the number of bombes to be used on the job. There
should be one copy for each operator and one for each checker. The
following represents the menu for the teleprinter message on page 42: