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7. The Jellyfish wheels changed on 22 April and the
wheels, which are designated May, have been broken. Bream
changed on 1 May and the wheels are also out. In both case
the Psi patterns were retrieved without depths. The currant
priority list is as follows:-
This list is based on both intelligence and cryptographic
1. Current Berlin Jellyfish
2. Current Rome Bream
3. Current Paris Jellyfish
4. Current Berlin Bream
5. Old traffic
considerations. The Berlib end of Jellyfish is a little
easier than the Paris end, whereas on Bream, as previously
advised, Berlin is harder than Rome.
8. Mr Newman's section has been supplying some of the
methods described in Report #F22 but usually only after Psi
setting has been unsuccessfully tried by Maj. Tester's group.
They are able to get out about 80% of the messages returned
by Maj. Tester's section. The motor run tsakes about 10
minutes. All of the Psi runs together takes about 45 minutes.
These methods are used only after the day's motor patterns
9. The Research Section has concluded that an auto-key
element has been incorporated in the permutation machine of
the Fish type.
Encl. - 1 microfilm
Walter J. Fried
Capt. Signal Corps
(AES Note: This was particularly difficult, flimsy typed on both sides, OCR
gave up and it had to be re-typed, but it was worth doing for the example