This is a transcript of Part 1 of the 14 part message sent from Tokyo to Washington on December 6 1941 (Washington time).
The message was received by the US Navy intercept station at Bainbridge Island, Seattle at 1300 GMT 6 December. The message is encrypted with the PURPLE machine, the plain text language of the message is English.
OBESE OVALS and TIARA (GN)OME appear to be code words for Tokyo and Washington respectively.
The group count (GR265) indicates that there are 265 groups of 5 characters in this part of the message. However there are only 262 groups in the archive copy. The archive copy shows the teleprinter paper is torn along the last line and therefore three more groups may be on a following line.
Where the original archive copy is unreadable, a period (.) character is used. A hyphen (‐) indicated characters marked as uncertain by the intercept radio operator.
The source of the original document is:
NARA. RG457 NSA Historical Cryptographic Collection. Copies of Messages 901, 902, 907 and 910 from Tokyo to Wash On 6 and 7 Dec 41. NR. 1815, Box 738.
S352/6 1000S GR265
OBESE OVALS TIARA ..OME
62527 ZTXOD NWKCC MAVNZ XYWEE TUQTC IMNVE UVIWB LUAXR RTLVA
RGNTP CNOIU PJLCI VRTPJ KAUHV MUDTH KTXYZ ELQTV WGBUH FAWSH
ULBFB HEXMY HFLOW D-KWH KKNXE BVPYH HGHEK XIOHQ HUHWI KYJYH
PPFEA LNNAK IBOOZ NFRLQ CFLJT TSSDD OIOCV T-ZCK QTSHX TIJCN
WXOKU FNQR- TAOIH WTATW VHOTG CGAKV ANKZA NMUIN
YOYJF SRDKK SEQBW KIOOR JAUWK XQGUW PDUDZ NDRMD HVHYP NIZXB
GICXR MAWMF TIUDB XIENL ONOQV QKYCO TVSHV NZZQP DLMXV NRUUN
QFTCD FECZD FGMXE HHWYO NHYNJ DOVJU NCSUV KKEIW OLKRB UUSOZ
UIGNI SMWUO SBOBL JXERZ JEQYQ MTFTX BJNCM JKVRK OTSOP BOYMK
IRETI NCPSQ JAWVH UFKRM AMXNZ UIFNO PUEMH GLOEJ HZOOK HHEED
NIHXF XFXGP DZBSK AZABY EKYEP NIYSH VKFRF PVCJT PTOYC NEIQB
FEXME RMIZL GDRXZ ORLZF SQYPZ FATZC HUGRN HWDDT AIHYO OCOOD
UZYIW JROOJ UMUIH RBEJF ONAXG NCKAO ARDIH CDZKI XPR-- DIMUW
OMHLT JSOUX PFKGE PWJOM TUVKM WRKTA CUPIG AFEDF VRKXF XLFGU
RDETJ IYOLK BHZKX OJDDO VRHMM UQBFO WRODM RMUWN AYKYP ISDLH
ECKIN LJORK WNWXA DAJOL ONOEV MUQDF IDSPE BBPWR OFBOP AZJEU
USBHG IORCS UUQKI IEHPC TJRWS OGLET ZLOUK KEOJO SMKJB WUCDD
CPYUU WCSSK WWVLI UPKYX GKQOK AZTEZ FHGVP JFEWE UBKLI ZLWKK
OBXLE PQPDA TWUSU UPKYR HNWDZ XXGTW DDNSH DCBCJ XAOOE EPUBP
WFRBQ SFXSE ZJJYA ANMG- WLYMG WAQDG IVNOH KOUTI XYFOK NGGBF
GANPW TUYLB EFFKU FLEXO IUUAN VMMJE QUSFH FDOHQ LAKWT BYYYL
NTLYT SXCGK CEEWQ RYAVG RKXIA NPXNO FVXGK JFAVK LTHOC XCIVK
OLXTJ TUNCL QCICR UIIWQ DDMOT PRVTJ KKSKF HXFKM DIKIZ WROGZ
JYMTM NOVMF J-OKT EIVMY ANOHN NYPDL EXCFR RNEBL MNYEB GNHCZ
ZCFNW GGRHR IUUTT ILKLO DUYZK QOZMM NHASX HLPVT NGHQD AJIUG
OOSZ. ....Z RTGWF BLKI. ..... ..YBD ABJ.. ...WY OEANV ...OM