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25 januari 1940 Bäste herr Gyldén, Jag följde ert råd och uppgraderade
min maskin "C38" enligt era rekommendationer. Snart ska jag åka till USA för att sälja maskinen. För att bevisa dess osårbarhet, har en anställd krypterat ett långt meddelande på engelska. Detta meddelande kommer att bli en utmaning. Men jag tror att någon amerikansk expert
(inklusive Mr W.F. Friedman) kommer att kunna dekryptera det. Skulle ni kunna göra det? KWBGB MOHVB RYOEH
YSEIP QBRRO NFFDI IJAWC RIBQU ROUWG CINBG CQHGY JKEQB ULZEO
OGCXL HMBJC OTSQI WUNFS MPUCZ QLIBG IBEAB GNTAA NIREI LHSHO
DTTXK EIAGA KCZUF EMKPY SIFNR YSGNT JIXIY WORLG JJBMW CSWCN
THMJQ LGWOS HVNKC HEEAP LZSTX KXPBA RYCHQ TDABS OOBXP XURFB
TREGB KXLLR YBEZV HJPDF GOTRJ YIFTR SGDYH JKMOR PLNZG VRITE
QXIWF QWBUU SYNIT CSVJV DPJUT PYLEG CFTEZ JMXGZ LPEUI QRSPT
XCVMD GEDAF OBYAC LAVGX KVIPC GVVZY TULCI QMZIS XEPMU HWRQV
TGNAT XAQCZ OWWES BPZDR YOZNF GRUTC ERZYN PJSUK RQDHA VRKPR
OXZDQ QYAHS XGYKB MMSGE CVKAI IECDE CMPTB QQJLD CWGJM LARFS
RQBEC MIOWN EFSOD JJIVU MNCKO GLPCL YHTCL JIACD WSODW BDKIH
DHTPH ICJXW YLPPV QYAID HCFHK QQZWS CODXN RCILX URQFF MQVQU
ALVPI HLIVS ZSCFX NGRPC ABWAZ CSBDW QRORB VBETV PYQQO WRRSI
ZAIMT VCEYU TSBHQ VQQNA MWCDZ WDDVX MNRPY PLLNI RTDWW HXWLL
EIPKM SEMIH DFRCV GJIYN PIHXD FBKDP NACHD WFUEZ EEYWM JBEDU
IZDRZ ZWBAX YRJYE PIQAN FOLTC HTWIJ SLLMV ERJFC JLAEU ITZPL
OTLGZ ICONQ MYPID DJBQD RNXAK JZHEJ PCYDJ LJCHP GBMYO FIHON
ILLLR WIZSC ZMKCJ OKFCV LCMYR KBJBS VMDTC XAMQH ZGZUL NWKBT
QZKEL BMUFQ HHPCY UVLDX IEHDD XRKFW ZGEZN SVDOB TEINP HMBXR
GHKWV IBVFZ OPELQ SNYMV FANAH NLNNG KBHGA UMLKC OONWU NWMPQ
APIIP HCMQQ OTBGJ ELDLP SRXSS AFZUX JUULW FXJOT VDQWK KOREB
BSVFF KGRRB CQOTX AWIBA KBCET QTYJP CJXAF JLBOM RLYGI QHPLL
CLHYP ALUOI NPGUA WQALJ OEVAU NIEEN NDEOZ DTGWG LFRDA MMIYO
ZTCZE KSEWA AEUJV QMDGE JWRNZ BVAIN AQTBH JLZYW XBISF BUWOJ
OMDHX BBKKL RNJGX OCLGW SVDLX WUIRX IMHAI WERDQ DFCDB LOHRZ
JWSTM IXEZR WOJLJ IIASB MDNQD TXPZQ LUUBU QEBGR CBNQE HDFNJ
WGGOQ JLJIY STOIR CFBHZ RJZXU PWBHQ ISQLV ZHAOR YACLQ TVBJJ
JIVPM SBUYB BKDFW DSRDI RFSTS GIIJX WBCPG QKBJR AXWBB QMCXL
EDCPY LENNA WDXQH CBWSM XXBKG VASWD ZQDFC XJQCY LVTBV QEPFI
OEJJL LSRQH UYTPF TROFJ GEWOR AMHMV TYLXC ICJJG ZXJVP XRBMQ
GXRYU CEIHQ PTBGR ODXYF TDJSV OGZBR BSZYK ZWAML JNZRN UGFOI
VKTCW IJMIC AJCTJ ILDWQ QXOQA XGUYE RYCUF UUMPL ENWDY MTHCP
IOWTY ICKQW RHAAK XMGAI UCTAB EUWRZ AZPXP BKGMR ZVEGX RJFAR
NQKJR RKAII QRHBJ DPLYT QMGZM OPECE JOSTF XDWIH LKCZH VLMOJ
KWQIM CASTK FSFYQ YMBER ZNAYS AEHBY VCODB QWIJV SVPBM IJBGM
DEQYN UZQSB HIVRW XWAMR WAWAY SJVIR DNXNB WZDZW FLVMC JJETL
FTJMI BDVAB ZRYES STVRB UVKEV RXEDA IDJJB TSEIM AOBQI OMSCJ
TIZWE HKWGI KZLKX ODSYM SJDBJ XPIVM KRPBD UVMJV GFWEU JPDFQ
JSZGG ZMABR OKATE WRLER ZFIPD FLDPP MNHJO SWDCI YPFPC BYHGH
IBWZC PMICL MYYWK SDYRF QCMDZ AHSNR OUUOL ASTXX DOLFQ IKOAX
OQXLF FEFPQ GCBPU ILFYV UCNRV IEZQR YGWDC KEFWG NFHTN WVQYF
BUGSQ LEBPT GFEBY YXDGN MAGOZ OIJIS FFCRY NWHMK XVBSI ZJQZS
SNNES WJDCB WYRBJ NHEIJ KJTRV YIKBR IPGBV LRFSM OQAWR ISYAG
BVOSM FLKNZ QFMGR JDBBI NFCRA AUEVL DSCDH EFHBW ZHWEN UNWQJ
YWWRZ PTKSV XREFK MIXAV FWFQH TJXWI VKLND MKITC XOUVJ CJPXE
LJOUS PWBGF LPNAH VMUMS JEJPW VVPCV QOKKJ JUTZW IFTGC JGPYW
OOAUE FDOKZ HPTEQ YNSVV XETCG STMEB NGNBY QRFSC CRLJZ HYWOY
VPNWY QYSCT LTDKT IYELZ MFAAK LTLYW DVCBX IPTAZ QBDMR FBJYC
QLOXD TDMVT JXGAR UNRHC XFTON GLJTL AYJSW KLGDZ NDESD QANUI
FYJCO PGOIN ZEEHX FSDSQ HVENR LYFSL PQEQT DEAFT OKPER QHICP
CAOGX OSCPW UWZBC YQTVI LPPQN JGXKS JNVGW YDSIP PRJVJ CEFGJ
BIGOV ZBDNC LHDWU AYDUV LRXYJ JTKYN QIQQP WVAJC IYYYR WRQJV
PWHPE QIKDC GWPYL KETXW WZXOY PPAAG JSCVE CCGRL EGNTZ QWAQI
WYUFW CFIUP ZUQPG IRBXQ WLTXR TVVGT CNDUH JSIBG OEZQP AEHAZ
ONUXI WUCPF VRGWD AIHKS BHRWZ QRUZH VMIXT YOBWX RVDCG PZDHY
TVGZM GWDMO EYGSB JRLFC QXSZG APKLM APZCJ OUZAE NJDWM EGRJG
DETNV RURVV BITIP JKRTC QODKE MDTMT AKOOM DWHSW OMHWH BYEIR
LRIBX ORWTF KFRSY LWGYM HFNIT ROADD PMXIZ UKKWS STILV LZMAA
ITOPB JYXRR IVJZR LOTAR BMUBH LHOGD GLZNF PKGNT AKMBQ TGJIS
HXLIX VOKDN LUYAU REVTE IZZXT AAXTE ZHDVP QWQWA JUOCO PSNEP
YYORX TQILR PNCDV SKUUT BKPZY VOTBQ AEESP CXAIR MXTOZ AZFQJ
WZYMW QKMRX QHTXW GPKKT RYBBK RRIWR FJCJI KDDHH CXPUA ZMFEQ
CLHKN IUDEU RJLQW UULYP PCHAM AUOEI GZBDF AZWNS PZKRK OVQJR
VOXEX ESYMD PBJHG AKFVY IFWBI PUZXX VLYVG HHSAH WXACU FLOLV
ABJNJ FQYHE RVUBF QTYOT FIPUE IEBWJ CFFGZ IQEZA RXJXB FLCFX
RKNDM DPQEB VDEQM GSYUC HGCSW DJOQH RBVFU MDVPC BUOPS FTYYK
RVQDU GWHHT IKLFG IHOII ZKMUW DUFEE SVYZD IKVXT NTCTM SQJTH
CQLEG WSZTM JVPIH IJJKC HVNQD XLQMJ VDRAQ AJHCD WUMRG YQTVQ
XPEGT KVKOW IQLKC UYQJE CQKJJ GPELT ETNYX SDUGU GKJSY RXJES
REUBP YLGDC ZQBPM OOVCW QKLHU ZLJNS TRSZM TXQBG SLWUK NFKUF
CPICE AJFHE LPGIO NDSQX DWUJZ YVAJL WDNLV MAIXK UHBVE QGYMB
QIPYI BHKDK WMVJS HULVV ILIFQ BACLW XPLAL ITVCW VWQPV GDWLX
GPRHD XRDIG WEEDX VLXQH JQFID KHNMG XTKIE WPPBN DRCLR YKZGR
EPAOX KK |