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Munitions Buildings, Washington D.C.
26 November 1938
Dear Bob and
Albert,
My dear students. Your objective is to find the
wiring for the half-rotors of the Red machine and
then decipher the message. With Kully, we
performed this feat without knowing how the
machine worked. You have this advantage over us.
I remind you of a few things:
- At the time, the machine still used the vowel and
consonant separation (this helped us a lot).
- The text is in English and the words are separated
by the letter Z. It dates from August 15, 1937.
I give you
several Cribs:
Z prisoners Z
Z international Z
Z incident Z
Z Beijing Z
Z Emperor Z showa Z
Z comma Z
Z Marco Z Polo Z bridge Z
Z territories Z
Z civilians Z
Good luck!
Frank Rowlett
GURTO DXUKF IHAOQ DKXIM TYDQR YZIKR EPUNB
GANMU RPSUM DOFNY FTIMY WQQIG HELIT NYTAN
ZZPRA DAGAC LIRHD ICGBX CYVOX WUWOL HAFOS
ALXBO DRIDA LOYRH LETSY XOHKS UCPQU XEHFC
YOURZ SSXEH GYLHI DGBOK ZYDCO XEYBZ UKXOM
RIXUN WFSYH PLPOJ NODEO KZEFT NEORA WDJER
TDBOE KZYGS POKEL JYTAN BAKWA EPFAP IODEQ
FDLZI PWUMK EMAKM TNEDY DOYWB IPIQO DMKNU
HPALR OKGIY DQIVM EVHEC QABYI JAHSX AZVET
GEUPL BHYSV RVUPF HAHOM DOAMZ OFVLP AZEXU
GRGAK BWISV DRIHP MQURH VOJOJ EUHTI FDULE
BKYIB DISQE REYDP VAHQI QGDYB QTAPP EZXNK
YJMAO DDGIK EHNSQ YNKAF DAFIW YIWWM UQPUZ
GKYSG VQYHE XPUYC AMYVL JEHDU PYXDU QARYW
NDHEQ OQAWJ XIRTZ ABUBI AVRHO PCZDA VBICQ
OOHEX HFOZX IWURU YZPWL EBJ
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