.. - I \ 

'\ .... ,, 

' "f'', r 

-.. : I I 

-. JI \ ti 

.. ., I I J .. t 

. 

. 

. -... 

' " ' .,., ·~ .. ,. ID:A65385 

J 

I t' \ .I 

<'.. 

' 

Interrogation Report on POI' 'TJllP IDrique 

No __ _ 

I .. , 

J 

r 

., 

' I 

,~ 

~ I 

... I 

.,. 

... .. . 

'I 

:,,,, .. .._.... .., ,;i...,. 

... f Yr. I 1

1 

I " r 
DS/13"8 

D.D.(C • .S.A.) 

OGlllDBIJilar Tighe, n.s.n.10. 

Adlairalt7. _,. \{ 

D.S.D.a..X. (ly1 lpJ 

S.A.C. \ 

I 4 

•I .... ,,_~·~• ... ••-~._~ • .-.-.i ....................... ._. .. ._. .............. ,_. ......... ..., .. ,_._. .. _,, .. ..., .. ._._ .... ._ .... ,_.,j 

Ite11111 ot part;loular interest are r 

Pae• 9 • u• DI tail.a ot oryptanalyUo work on Br1 tiah Jlaftl Oode 

(ii.fuO n) (11'8Wl - .Awd.1181")' vessels). 

•trattio beo... unreadable on 1 •t Januar7 1944. and aantizule4 

to be aa• • page 10 • 

• ·Pae 20. \ I \1 ,. 

(a) BaYal 01J>ber Mo 1 3 (Pranktun). 

Ji"brual",J' 191t-3. 

. ' - Ro auoae•• after ~ .. ! 

(b) U>JD an4 OOIOX• • Trattlo read until the em. 
• 

Name 

Rallk 

Unit 

~tion 

F,P. No. 

Captured 

Secret No 

Interrogated 

REF ID:A65385. 

CSDIO/OJIF / Y37 

Opw No: 

TEMP Enrique. 

Matrose (Civ:l.l:ia.n :ln equivalent rank). 

"B" GRUP.PE SAN REMO (Geman Navy)• 

Asst ~~raphar & tmnslator, later iT MeolE.nJ..CD 

02.516 (?) 

lO May 451 GENOA. 

M1+5/6U 

CSD!D/CMF l - 12 Jun lt-5• 

INDEX Pa.g~ 

1 • PID!JA.tlBIE ................................................................ . 

2, HISTORC AN> MOI~··•••••••••••••••••••••••••••••••••·••••••••••••••• 

3. Otl.GANISATICN OF GERMAN m·"y INrERJEPT SERVICE ("B" - DJ:EmT) ........... . 

A. CJO..I SKI,,.• • • • • • t! • • • • • • .. • • • • • .. • • • • • • • • • .. • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 

B. Obst MND••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 

o. 4- SKL III••••••••••••••••••••••••••••••••••w••••••••••••••••••••••••••• 

I. 011Ptograph:lo Service •••••••••••••••••••••• ~•••••••••••••••••••••••••• 

a.J Th3 "General Ref'erate" •• ••. •••• •• •• ...... •• •• • •• • • • •• • • •• • • • • •• •• • • 

TIE "Ref'erate" ••••••• • •• • ... • ... • • • • • • • • • ... • • • • • • • • • • • • '• • • • • • • •• • • • • 

o 

~ The Seas &/or Groups•••••••••••••••••••••••••••••••••••••••••••••• PerBOJmel ••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 

II. Intercept anl DF Service •••••••••••••••••••••••••••••••••••••••••••••• 

a~ The Naval DF HQs (Ml? Abt) ....................... , •• •• •• • •. • • • • • • • • • • • 

b The Naval Main DF Stlls (MEHS) • •• •• •• •••. •• • •• •• •• .. •• • • • • • • • • •• • •• 

o The Naval DF Sub-Stns (MPNS)••••••••~••••••••••••••••••••••••••••• 

d The "B" Gruppen••••••••••••••••••••••••••••••••••••••••••••••••••• I 

4-e I.oo.ATigl§ (A G) • • • •••• • ••••••• • .................. , ••••••• • •• • • • • • • • • • • • 

5. J!JQUllMENT (A• O)••••••••••••••••••••••••••••••••••••••••••••••••••••••• 

6. W0!1C AT :Fn REF.ERAT_J..MUENCHEN BRAtJW • THE AUXILIARY' VESSEIJS O(J)E ........ .

A. H1n.t~···~··•••••••••••••••••••••••••••••••••••••••••••••••••••••••••• B. Desoription of Code anl Reoipher &Jstem. •••• ,•••••••••••••••••••••••••• 

I. The Caie Book ••••••••••••• •• ••• •• ••••••••••••••• • •••••••••• • ••••••••• , 

II. The Reoipher StJBtan ••••••••••••••••••••••••••••••••••••••••••••••••••• 

III. Traff:!o ani Indicatcrs ••••••••••••• ~••••••••••••••••••••• .. •••••••••••• 

2 

2 

3 

3 

3 

3 

3 

3 

3 

li4 

5 

5 

6 

6 

6 

7 

8 

9 

9 

lO 

10 

ll 

ll 

o, Cryptograpqy • Mehhols ani Result&•••••••••••••••••••••••••••••••••••••,12 

I. Sorting at t:raff'io. • •• •. •• •• •• •• •• ........ • • ••• •• ••• ••. •• •• • • • • •. • • •• l2 II~ Breaking the Recipher, Matti.eds used ....... , •••••••••••••••••••••••••• 12 

III"" Braalc.ng the Rec1ph3 r, Detail.s • •• • • • .. •. • , • • .. • • • • • .. •• • • • • • • • • • • •• •• lJ 

!

a! Pa:frs or ind.108.tors •• • •• • • • •• • • • • • • • .. • • • • • • • • • • • • • ... • • • • • • • • • • • • • • • l3 

b "SUspeoted" subtractor group.-··.••• ....... •• •••••••• -. •• ••••• •••• ••• 13 

a Chance repeats •••••••••••••••• r•••••••••••••••·~·•••••••••••••••••• J.4. 

d "Ral.llJlS" " • • t • • •• •. • ••• • ••• • •• • •• • • .... •• •• • • • • • • • • • • • • • • • • • • • • • • • • • J.5 

e Dec:Lphsr:ug of :lnlioator groups••••••••••••·••••••••••••••••••••••• l.6 

( 1) "Oba.in or inliaa tors" •• I ••••••••••••••••••••••••• I •••••••••• ., ... 16 

{:!:i) "R:iz.s at :lm.ica tcrs" ..................... • •••• • ••••••••••• • •• , •• 111 16 

) 
~-------------------·-- • REF ID:A65385 • 

!JLJLU (contbmed) • 

(:t) Ditterem:lz.(i; ••••••••••• "' o • • • • • • • • • • .............................. • • 17 

(1) 11 as an. a:id to rociphlr ~ oode b~•••• •• ••• •• •• •••• 17 

(ti) • tor the pu.t"Poae cf 1-TJ:ine p.irs (•ser:Len•) ........... 18 

IV. Bbgistration of Cale Groups••••••••••••••••••••••••••••••••••••••••••• lS - 7. 'J(QBl.AT :rnt~-.l~.}_.!__qr~~··························· 20 

a. Th.e ~ ~tan..................... . . . . . ... . . . . .. .. . .. . .. . .. .. 20 

Be RN ani US ?e.vy Taot10nl Cod.es •••• •• • •. • •• •• •• • • •. • • • • • • • ••••• • • • •• ~ 20 

8 • m E '0-BQI, T DF SERVICE. • • • , • • ••• • •••••••••• • •• • • • • • •• • • • ••• • ••• • •• • • • • • 21 ·- -- -~---...----

9.. 1IOBlt J~ p.~~-~-.H~·. • • •. • • e ee e • • • e • e • • e e e • e • • e e • e •a e I • 21 

10. !JCRSOBALirIES ••••••••••••••••••••••••••••••••••••••••••••••••••••••••• ZL 

A.ppenUx "b."- &.ttern Of GerJ!Bn Ne.vy Interoept iT l!'ol'm •••• •• •••••• •• • • 23 

n "B"- " n " 11 • Log Boak Fozm •••• • • • • • • 21,. 

II 11011- Detalla ot wr stns C07ered by Geiman •v Interoept 

Service, Call s:i.gns & Frequem:Les melDDrised qy PW'••••••• 25 

"D"- Description am. use of "Roll.ma~'' (w. sketch)•....... 2~ 11E11• PW's desoriptian of U-BOit.'l! Special DJ' apparatus am o:xiplo1ta: at c. DF Opo:re.tor (:in GellilUl am EnE.lish tze"+t!t!Z') 31 

It 

n 

1. ERJi!A.MBTJI 

PW is a ta :lrq bright Y'OUl8 man of 26 at m:bBd Ge:aaan arJd. Sp&n:ish origin. 

He claizm to be a Span.J.Bh subject. His sto17 is an ummual om 1 am h:ls m:mmr 

does not inspire co:ntidenacJ at tbe same tim:t there seems to be no obvious reason 

why he should •nt to m:islsad, unless be hopes ix> be rep.tr:i&ted to SPJ~, ther.'"b.r 

e.vo:ld:i.JE internne:di. He tallm 1'realy1 o.lmost too will:Lzlgl;r. TeahnJOal :l.?Jf'Ol'llE.M.on 

is believed to bs f'airly s0Wll1 :in spite of' 1be tact that PW :Us not a ozyptogrc.1r..er. 

PW speaks JIEElish1 Geman.1 Span:S.eh.1 Fremh a:rd a littlll Italian. 

Rel:iab:Uity: J'a:fr. 

2. BISTQB!' JJI> JID'mllmrJ_ 

29 A~ 1918 

193.3 - 38 

Jul - it.US 39 

10 lfAy 116 

1 Born in &,RCEW.Nt.. as the son (posthtm1DUSly) ~ ll SpcllllSh f'e.thei·, 

Guillema TEMP, and t."f' a. Gerlmn motm r Ilaria :nee KDNZ. !13 

mother remarried, in l')Z,, a Ge:ma.n teacher, SC:ii.B!."1FBR1 who Dll'nsd 

a i:rivate schoal. in Bl.Rema&. c~. barn :in 1900, served 

as a nawl cadet m the f'irst i7orld 'il'ar am. joimd t.b.e Ge:man 

ND.vy a.gain duri.lJe; the present .r. He oams r:£ m.val stock, om 

ot his lmjtleB beint" an acm:LreJ.) • 

I Visited Ge:nmn High School at C&LLB KC1G. l,.1 BaRO&CIL\. 

Went to BERLili to learn phazmaaJ". l.pp:rentiaed to Kessrs BIED•·E 

BAHN. 

Started vark at Reichsvere~ Ohlnn' sobe P.s.snm. 

Called up to Germmi. l~'VJ", o.m on account ot bl.a knowledge ot 

:lll!;llsb, pasted to crntosmphio Sei"V'ioe. (am SIL am&' MNDm). 

I Started work O.fter &. fnrtn:leht's OCIU'SB• 

T:re.nsf'e:r:red t~ reas cm r:£ h81.l.1h to IT1'1.Y, am. pasted f'irst to 

11B11 Gruppe NERVI, JAter to "B" Gru.ppe SAK Bml>. 

I "B Gru;ppe II &.N mro left far GENOA, but; ns B topped b1' a J:'&rtJ.S&n 

roa.d block at COGOLETO. PW internmd am orneziiRd the bloalless 

surrezrler of t:te graip11 cons:ist~ r:£ an ottr am .i,.o e&s. Re!IIEi.1md 

with J?art:ma?JS. 

Reported to British IilvP-l Ott:loer at GBNOl.1 ani taken mto 0~1Dtaly 

two d.a.ys later. 
• REF 

_,.. 

ID:A65385 • 

;5. CRGANISIATI<Jf OF .iLEI!J&~}¥~!!.J1!!'..~ ~ ("B~_p~) • 

A. GmllA.N Ni W HICE CCMU..:ND- N.a VAL 'L.R. DDIECTOR.~TES. 

~cmw~ijlo DER J&'~ - - - - ·--TOOEN: herec.f'ter referred to AS 

~ ~.). --- -------·----- - ~ 

PW kmw at tho ex:\steme c£ faar Ne.val war DU:-ectcre.tes (SEl!lm.IEGLEJ:TtOO.EN 1111 ~ mnbered l to lt-1 11h:l.cb he described a.s the 11 taotioal oammms11 

of the Ge11$n Navy High CcDIDnl (OD)• SL I+ - kncwn as '+• BBL after 1 ~ lt4 - controlled 'lhe :four HQs or burea.m: deal:i.ne with the _.. ... val S~s Sert.ioo (ll'~Rn"E 

Nli.CHRICRl!W DlE?6T 11 DD) - see B. below. 

B. H9s NhV:.L StGS BEIU.Ql !CHD lflR.lNE ~RICH~. Dillm = Che£._lgm) • 

Until l ~ li4 there were :f'wr HQs of the Ge:mnn Jlanl Sies Service 

u/c SKL '+• These were called Chef mm I - r11 their :fUll address a.bmys bei.Jt" 

preceeded by ,l'eference to High Oarm:nl'd o.m D:5rectora.te, for instanoe OlOi SIL Chet 

UNO IV. • 

Cllef MND I &:) deo.lt w\'lh Geimo.n NO.v,y s:ie;mls System ani mn ocxles 

" n II ) and ciphers• 

' Otef' MND III dealt with Intercept incl. DF mi CrypWf",rapey ("FtJHK AUF.KL~ERUNG" or "BF.ae&.cHTUNGSD~~" = "B" DIOOT a.m 

ENTZIF:BERmG = EZ) • 

Chef MND XV dealt WJ.th RlldiolDJat1on mil Defence ago.mt P.sdiolooo.tion ("FUNK MES" i.e. "CltTUNGS'iESEN unl ASDIC 

.tJ3DIR US\7") • 

Bfter 1 Mc.y 44 these HQs were knoll'n as 4 SKL I - IV, o.ll wuler 4. SKii. 

a. I BKL_IJ:.I (FOlJ!:.rll. QQ4 SKL am ME!D III) 

Th:ls HQ, till 1 MD.y 41+ O!Bf MND III1 when its o~sation lPB the 

881DB1 is best descr:Lbed under its respoct:Lve :t'umti.Ol18 ot Crypl;c;eraphjy, am 

Intercept e.nlIJLP. It JI8Y be assumed that an the advice ot the Refemte delll.lJlg 

with crypt98ro.pey the HQ oontrolled. the intercept am cr,yptogrophlO wcrk (lm?-

3mde ~) OD.rrlBd out by the Naval DF and Intercept units. It is not certain 

wheiher 'the HQ also controlled Admin and teobnicc.l mtte:m m 'these units. 

I. Cmzt~~~ Service (BEJ!l'.PO 

. PW does mt knav hm the Evaluation Dept (AUSWERTUNG) .tit'bed into the 

, Ol'gt\n:iao.t:k>n. For purposes or cr,rptozrapey wcrk was Ol'f'P.nl.Sed :urto two "General 

Refe:mto" an1 a m.unber ot ·

1

Refemte" 1 Seas and Groups. 

{n) k..,.'~_rpral Refemte 11 

These vere two in m1nber, om oalled Genel91 Rete.IDt "F" dee.JJ.ne with 

RO.l.U. Ni.\VY tm.f'fia am RUSSIAN Nt~V!, e.:ni the other GenoX'El.l Refemt 11 ? 11 GB "AMERIK.f.i. 

iAbtelluqi;", deal~ with US NAVY. .b.s iW jollled the crga.niza.tLon in Kar 43 he d:ld. 

not la1al harr work es subdivlded e.a.<>?E Reteiate - e;eneml. am c:rdinary ... m ttie 

days when the French, Ital:aan, JUBoslAv and Greek :no.vies etc me. to be watciled on 

tm air. PR ~ Jmew the orga:n.:lse.tion ot Genem.J. :Reterat "F11 • This \\t".S subdiv1ded m sevaE"a.l Reterate- am smaller seos or grou:ps, noocrdinc to cam.tries, 

type at tra.ff'J.C, taslm e.Jtl r:eogra.pi:lcal subdinsion at eneow wireless networlcs. 

Se a (b) mil ( o) below. 

(b) !JI R@fgte r:£ GemN Reto:rat.!l! 

Tm:re wero aoms :f'J.ve Retem te in all, wb ioh had both a mme am a. 
• 

Retemt 

-

Fn Refere.t 

? Ref'eIDt 

? Ref ero.t 

mn. Refemt 

(after Deo 43) 

REF ID:A65385 ~ 

-lr 

Cover mi.me -.--..-~ 

Ko.m..N 

GALLIEN 

? 

Fumtian 

--- Wcrked an HJSi Gre.cle R.N. codes, 

WorkEd on R.N. J.uxil:lar/ vessels code 

in use in HOME V ... Tl!RS ani .:~TU:i.NrIO as 

tar Soulih a.s FREETO\VN (reoipmr oharir-i.ng 

tnoe monthq) • 

fJorl<Bd on R.N. it.wc:U.:iaxy Vessels ood.• 

ll1 use in MEDITERRi .. lE/.J."'i a.rd DIDI.AN 

OOMN (reoii>her om:q:p.ne three tJJIBS a. 

month). 

No details lmav'n. 

Wa.tlmd. on Russ ::ian ND.val. traffio. 

work ll1Clud.ed. ttia t an Naval A ttlldo s' 

' ~ttio (see further ( o) below) • 

One Refemt deo.lt 'dth S'ilEDISS: Naval tra.ff'io. 

(o) ~he Secs ~C?.F.. 9;.~~-.£1'-~.Li!!l~J!-t "F" 

These vere EmlllllEr 1UJ0lei in General Ref'e:re.t "F" f'omud &1th.er ad-hoo 

am disbanllll -men \\Ork was emed, or pemanent sub-divisions of Gens19.l Retera:t 

"F1' whose :tUnctiam were nat large e:nou..".h to warrant tm :f'ornation Of a Refexc.ta 

(NarE: for the puzpooe ~ this report a Sec vr.ill be the name given to the former 

type afzmoleus, am a Grrup that given to the latter t~rpe) II T.he graips v1era 

e:iiher :ru,u as sepe.rat:e nuole:L at 4 SKL Ill, or worked a.s speo:iAllised subomin::.te 

wn.ts at various Reterate. P1 re:nembered:-

- termed after the s:Lnldnc of the BISMl.RJt, and aily existed. tor 

a.bout; a :f'ortn:igbt. 

- no details lcnOV'n. 

.. Worked :f'ran about 42 to ~. an Na.val .t.tta.che's traff'ioe 

Grogp_ 

FRITZ 0!1TO (Fa) 

FRITZ Hl&X (Fm) 

FRITZ Q\a tsoh (l'q) 

"K" Grup? 

fom.ed about em i.3• Vorked :f'Or Fn Refezat (:MUENCEEN 

BiUi.UN) an dift'ere:ncing. 

tomed. before 4, • In Dec 43 toolc over the BrErTm, 

H.W{BURG am BBDmN Seas, a:rd beoe.m Jm Refera.t. 

: dealt WJ.th ~ wo:rk at the H'aw.l :M'lli:ln DF Stns (see 

II. b, below) • Warlmd on taot :ioal o:>des smh as "LO-L012 • 

i wcrk:ed far Fu Refero.t. No details !mown. 

dealt wi1h "roll:lr.E" for all Refemte ard Secs ard/or 

Groups wcrkil"lg on reo1pmr breaking. 

NO?E: The HCJiiLERITH Abteilung whioh my er may not have 1:B en pa.rt of the oren "vra.s 

available for speo:ia.l work. 

(d) PersolJZ!! 

A statt <::£ a.bait 700 to 800 oivil:la:m anl Na.val {inol Army a:ni Gt.F tro.r.ater.red. to Navy) persormel, nale ard f'enal.e, worled at the HQ ard in Ciypto ant 

Evaluation. Tral.lll.ng Vll.s given to JJ..L pemonnel in of'f'ioes by means of' a 14 

days cairse e:x;pla :l.nu>g generally the tT,pe, purpme and metilod.s ot the workD 
REF ID:A65385e 

-5- !et' mt!f 

csnm/oo/'! 37 

OrrJPtOgra;phers attenied t:te smm speo:ial oourse whiah also lasted two weeks. PW 

stated tmt af'tm- 4,3 the CJCM was oomtantq short r£ ErJgl.J.Sh spee.k:izJB personml. 

He also stated that he had been ottered :f'aoilities to beoane an exp:irb in orypt.ogre.plv.- mt bt he had deolined it. ("I f'elt tluit thxough nr;y worlt I mif')lt do 

harm to a mticm \\hose enqr I - a Spnniard(L) ... an D 11). CAB only got speo:ial 

tre by worlo.ng - unotfio:Sal.Ju - unasr an i/o wat.1 (WACEiiEITER) an:l tryJ.ng to 

improve tbair knowledee. NO special course was mJd as in o.m. 

Tm staff' wcrked :In shifts oe.llei watches (WA.CHEN) unler an 1/c "VBtoh, 

(W .. Ac:m.EI!rER) usmJ.q a ro speoial:laed CA.. Ea~ •toh corsJSted of approx lO peopls1 

l - 2 OAs am 8 stat:tstio:ia.ns and trans~tars. Rotation of watches procaeeded as 

foJJ.ars: 

~ J days trom 0800 to 1600 hrs. 

n 11 II II J.600 II 2300 II 

II 11 II II 23 00 II 0800 II 

one day., off auv 

two days of 11 extxs wa toh11 (H.USWl.CHE) t'rom ~ to 1500 hrs 1 

ihen as fran. tre bagi:mh:g age.in. 

Security regs were strict. The oft:LoJal. secrets aot or regs were read 

out to personne 1 evm:y montti. 

O.f'f'ioe equip D; was scarce, «lOnCJJty' bei:re, the motto. Clerlm had to 

bu;y their own :lni:ta rubbers outside and. even gett ~ a penoll. was a task of sane 

dif'fl.cul'W. 

II. lf:va.l DF _a:rd Intercept Serv:l.oe 

Tmre were three types of siation set up for DF a.m Intercept, knarn 

generically as 11B11 - STECLEN, or 1 f'ran a o:r:rpix>gre.phio point of view, .b.UBSENSTEC.IEN. 

Though 'the min work r::£ moat at 1he stations oonsist8d of intercept of wr am Rr 

tre.ttio 1 thfJ" were all referred to o.s DF (mL) sta tiom, 1.e. Naval DF HQs 

(MARINE Pm. :.BTEII.iOIDEN = :M: P 1=.bt), Naval *in DF stations (?£RINE P.SIL &mSTPLLEN = MEHS), am Naval DF Sub-stations (?GRJ:m PEIL NSBEN8.l!ELLEN = mE) • 

'll'e re were also smll dets called 11B11 .. GBl.JP.E'.mN. 

Tmtt:lo :Lnt;ercepted r:£ RO'fli.L &~Y 1 US 'NAVY, RUSSit\N & SWEDISH liAVIES 1 

was sent lll ?-rt by TP 1x> 4 8RL III. 1.ppreot 21 000 messa~,f!IS a day were received 

in B:tm.nT from the 1.\18eenstellen. ( Details sent; by TP were the beading or preamble, 

anl the first five am Jast f::We grou.i:e of all messae;eo). 

(a) Naval. DF HQs Cm> Abt) 

These were the larsest fixed sta.s. Aooord:lng to PW there were two in 

eXJ.Stenoe, om (MP Abt DEUTSCHE BUCIIT) at ~1VEN/SBNGV~ the other 

(MP l.bt ~ at BRUGES (till mid-sumr.mr lilt.)• They appear to have been fo:aoed 

dur.l.ng the •r (FL.:N:IERN for oert.ain) or in a?V oase raised to 1he status Of HQs 

(ABTElLUNGEN) • TlEy oao.e directly unier 4 SKL III fer opomticmal control at lea.st. 

Tmir \TOrk wa.s nallil.y :1.J$eroept. CAs were attaobed fer dealll'Jg with 

lar grade traffic. In addition JdP Abt FIAlIDl!ml tminea., equipped anl pos:bed U-Bcnt 

DF am R? Inte:roept opeza tors (see iam 8 and App "E") • 

Bo1h :MP LbteJ.l~en controllai a nur.iber of Ne:val DF Sub-stations (!tU!iS). 

Bee umer (o) below. 

End:I. KP Abt had the foll~ IBr&omel:-

approx 25 sets (zams = BEREICHE) with lOO 'ft opera.tom. 

11 20 statistioians/a1.erlm 

n 10 oryptogre.pbers 

n 10 <U"'d.er~ l"OQD. arid IIJ! pll'Bannel 

n 30 guazd personml 
• REF ID:A65385 • 

(b) J!aval Yain J¥'_fl,tations. (MEHS) 

Tbere Was a •Ubsta.nt!el. :mmita r of 1hese1 sane r:I lhic:h l'ad been in 

e:x:iatenoe sime be:rare tbB war, viz. KEHS AHLBJD{t LAIGENARGEN am. sCBm. l!'al" 

other looatiom see para. 4. • 

!fbey dealt ma:lnly witil Intercept, am oame under I., sit. Ill 'tor opel'-

atioml eontrol at least. They themselves ocmtrolled 1he worlc ot tm BJlll.ll deta 

( "B 11 .. GRUl?.PBN) 1 anl d som c:£ t ha KPl'll. 

Personml o:f' each mm was as f'olJDRS:-

apprax 1,5 set.a (zones=iBEREICHE) wi1h 60 m operators. 

" 10 stat:ist:io:!.a.rJS/clerks. 

" 5 crypt~phe rs• 

11 5 crder]¥ roan am Ill personm1. 

11 20 gm.Id personnel. 

( o) &.val DF §ub-s.ta..E:-<>Z!!. -~ 

These, (f'or Lc:oatwns see pa.re lt.) concentrated ohietly on DF, th.cuBh 

so:ca Intercept work was done. They contin.ei themelves to lower gm.de traf'f'io. 

Thewj oame unler eJ.1her an MP Abt or an M:EHB. Thm, all ll:Eml in NCE.WAY am the 

BALTIC area. as tar ·;rest as BCIUGJKvrere urd.er ,MP J .. bt DEtlrSOHE BUCJ1"'T1 these in 

HOLLAND, BEIGitm mi NORlH J!BA.NCE uriler :!!P ~bt FIANDERN. 

Tbey :f'ozmed a netvtat"k oa.JJ.ed the "DF-network" (P.ElllrnrZ) 1 whioh 

hORever d:id Nor ooopera.te with the other aerrloes ~' Gl.F etc) 1 tar ma.ttors rela.tine to AA defence, Ooo.stel. defence, bcmbmg of convoys, eto. Stas used G.n.F 

LT for the purpcae of inteZtX>Dn. E.g. :it" 11 .. c\NSt.TZ Quatsch 11 •s called owr the 

telapbone, this rueaJlli tho.t a bearing lad been drtained Cl1 o. unit sigm.Jling 1n 7IT 

on 124.5 m (Fer ~ the aa.ll •s "J~TZ Quatsoh .. Fonie"). (Conv(J' escorts 

f'requel'JQ,Y, see nlso .hpperdix "C" 1&ra c.). The mtter was reported to MP J.bt 

JU .. NIBRN ani cuts e.ni looc.t:Wm obtaimd repar.-ted. to :em.m. Pi d:id not 1aov hm 

results were e'VB.luated (? U-boo.ts etc.). --

FD.oh MPNB bad a.a perso:nn.el:-

approx 5 sets (zones:BEREIOHEO w1 ih 20 'WT opera tors. 

li- DF opera. tors 

2 at"derly room o.m Ill pe rsonral. 

Gut.rile suplill84 by at.her ?e:vy units. 

(d) ~II ... ~:ty.P.if!l];, 

These wem szll intercept gl'Ql.IJI ar dets pJaoed in poinl;s ot tact~ 

:Im~ Scnetimes in aadi ti.on to beina u/o ot an mm tPs-1 were at tlE aams 

time u/o of a loo!J. tornation as well, e.g_. ""B" Gru.ppe NERVI was u/o 7 Seour.lv 

Div, but e.lso um er lCEHB K&J.RERSEE. 

In miiI at w.r:Lous tines ths:n1 were "B" Grt.qJpen at RCJIE, VENICE, TBmll:E, 

'NERVI, 8'.N mto a. Ill PADUA• 

Personnel varied fiom Grou;p to Grcup. Thus NERV'I had l ot'f'iDer1 2 

lPLmkme:ister, 6 mos, ati1 6 men, whereas SAN mtlO lad 1 ott:laer Bl'Jd 40 ats. 

For details of worlc of 11B11 - Gruppen NEm1'I am &N Rl!MO see pe.:ie. 9• 

NQrEs The fa1.lowin£ diaaram :Ulmtmtes thB opera.tioml QM.in c£ ocmmnl for 

tile DF am Inlieroept serv1ae1-

(see arm-) 
• REF ID: A65385 • 

-7- _....,..._..,.._ 

!O! SlfJ!B[ 

2-Sfl!D/f!.M!h .. ll 

I i,. ~-- 1-------1 

MP Abt DEUTSCHE BUCHT MP .hbt LmERN mm. 

:t.fmS in N&Wkl' c.nl BALTIC MP.te in Bdu.c..:ND, 

area as fe.r West as lKEKlm B!LGIUM &: N.:DWt.NOE 

11B" Gru.ppen 

Je.. LOOUTIORJ 

NOrB: (Inf' ex>n'tnined. :in sub-p.u"as 0 - G should be ta.lmn with sane reael'V'e). 

A. OKX 8KL Ohet" M?m III 1 trcm beg war ) 

(Renamedl lrhy 4lt- - At:_ SKL III) 1x> 22/23 Nov 43) 

In OKM bldgs 72 .. 76, TIRPITZ 

UFBR, BEmJIN, 11.35. 1 emept 

Gemral Re1:'e mt 11 ?" (Amarilal. 

HOLLERITH (?) Abte :llu1ti: 

:MP .la.bt DllJTSCHE BUOO 

MP Abt FIANlERN 

J~btea.lung) :ln the KUNSTSEIDE 

HA.UBt 4, l&J!ISSDAl8f, BERLINCJHARLcnwrENBURG. 

: :f'ran erd Nov 4J) With emf, :i.n Pz GREN IfASERNE, 

to Feb/Mar lt-5 ) EBERSWAiiDE :nr BERLIN. 

I t:Sll m:!d Jun lfll. : BRUGl!B (TE.INDEl'.') • 

: after banbing Split J.nto an mHIJ anl ab 

:MB'B, both at BRUSSELS• 

Ce Naval a:Ln DF Stat:i.ors (J&R~. HA.tJP.rSTELUfi) , 

KEHS BRlJSsm:B : Outs:Ule BRIJSs&s in or 

near X3JJgs Qa.stl.e. 

: Near SW'INEMtJEND]gJ in exieteme 

bef'cre J.939. 

: Nr BERLIN. 

: 0n Lake ccm~. EJdstea. 

bef'cre 1939• 

' 

: In RHINEIKiND nr OOLOONE. 

Kmt impartnJt a-; existed 

be f'OJ.'e 1339, Tock US :Ne.v,y 

tmtf'io. 

I No details kr10W1'1 

Fonned in NORW.it.Y in I 40. 

: Fo:miei in N,DENl&RX in I 40. 
• 

:MHiS BREST (Stas at LORJEI~ &: 

B..YEUX) (') 

lmrs UONTP.l!UJER 

Kl:HS B<EDEt.UX 

MEHS KARERSEE 

(~GO di Ctr.LD.bRO) 

MEHS (?) L'l!IE1-S ~ 

l:mB (?) RCJAE i 

REF ID:A65385 

-a- • !9!' gpeBi! 

2§PlQ/OMFtl 31_ 

: ~ de~ l· Possib]\y' not c.ll 

were MEHSs 

II II II 

Nr BQLkNO, FOJ."llled. in ml.d ~ interded 

to be b rgenqy HQ (.hUSWEICHSm&LE) for 

<EM, then at EBmsvw:.DE, 

: Pif was not sure of these ani could not 

suppl;r a;n.y deta:i.ls • 

D. l{aw.l DF Sul>-Stat10ns (~ ~~~Tl ••• 

MP.NS BRUSsmI.S 

M1?NS BCRKIJM 

: LOIDQU.JdPS1 ui blde rrr the Belg:W.n 

Tenms Club. U/o MP 11obt FL;.NDERN. 

U/ o MP Jl.b-c mDTSCHE BlJCHT • 

Dld :intercept work as well as DF. 

: OOV'er name :HEriENE. .:"'f'ter 6 Jun ZiA. 

also d:ul intercept worlc. U/o MP ... bt 

F.LhN.IERN. 

:MPNSs (two stas) BRUGES 

Cover mm llbUSI. U/o MP .. \.bt Ma.JIDEHN. 

Cover JE.llBS: BRIGITE (DF on 100-200 • \9B.W bani ~), am BL.NCI. 

(DF on short wave traffic only). U/o 

MP J:bt L~ ~lDERM. 

: Banhed cut in May 1'41 moved to ~.T. 

Dti Interoe.i>t 'WOI"k as well as DF. U/c 

MP Abt liL..liDERN. 

: Pe:dlpps e:nsted till- lt3 (?). 

Ee Ge man ?ii.YX..§.l!S§~a;L_~rd,.s (~~-~..,!! ~gHS ~J!DCB).a. 

'.NVX • KlEL '7IEK (Ii.-~GENUIC) 

NVK - m.zmnt.KEN (rr IiOEBl!PK) • 

F• German ]i..!,1Jnter.2_8,pj; imi DF S,:tas in_S.l!-W• 

These were kna;r ... 1 W¥1.er oover names a.rd md loo at10m statec1. belm1: 

:M. .. :ax, ~&. 

llLRK ru~SEN 

M .. BK NOB!rE 

at 

II 

" 

a.. "B" Gruppen m IT.!ll. {dates .n£l; oerta.:i.n) • 

ROME 

VEN'ICE 

TRIESTE 

~DR.ID 

SE'fILL.i. 

VIGO 

NmRV1 (under mm Kt.REBSEC) • 

&.N REMO (u..'"Jier MEHS ¥...~. 

:emu.~ (plus "ilT eta). 

Still in eXJStenae Apr 45 (?) 

Still :in ex:istenoo ! .. pr 45. 

lW supplied details of ~ a:nd. i1r J.llte rcept aDi lF equ.ip:oont used by s am or 

ihe Intercept Sias worlo.?.E um.er 4 S'KL III. 
• REF ID: A65385 • 

-9-

Ju RI? Interoept; ~ ~ 

HRO {see + belovr 

O'R 101 

DRCM 

R3fa, RADICH: 

S..DIR UKW \ 

B. ~~J':ll8IJt .. Sets: 

HRO (see + bela.v) 

LO 6 K 

LO 6 L 

SCff"Jla.BENL~im 

o. ~ta (f'or Vf.l! __ anl RI!) • 

EP2 

.tUlCOOK CR 101 

Makers: 

--

Na t:loml Oanpa.t\Y (a :ia) 

USl. 

Sooiete Radio Fra.nca:lse 

Lorenz - BERLIN 

U&. ti m, mme not 

known to HT 

Ge:man made, f':um not 

known to P\1. 

Na.tionel Ocmpaey (a:lc) us.~ 

Lorenz .. BERLIN 

II II 

II " 

Telefunken 

Philips 

Used At: m9'1... 1 

(KP 1 .. bt ~.NDERN; l'Ll..NOERN 

(MmS BRUSSErS a:nlC20NINGEN • 

II II II n 

" II II II 

II II II H 

8Di also 11B11 - Gzuppen NERVI 

am S:.N REMO. 

:rmIS GRONlNGEN & ~. 

MEHS HJCERRING. 

MEHS GRCMNGEN; MP.NS ~T 

& "B" - Gruppe Si.\N Rl!MO. 

KEHS GRar.mGEN • 

Kr:' ... bt RJJIDERN; :MHIS GRCMNGEN. 

KEHS GRONTh'GEN 

II II 

n II 

MP .hbt FL..NDERN; mHS GRONINGEN: 

YPNS DEN HELDER. 

If II " 

+ PW' stated tmt lm.O sets were kno .. m to exist in BEIGIUM: am that the Geiman 

authorities imde drives ix> requ:iaition 1hem. Slbld1ers, BB.1.lors eto were pr<Jill.Sed 

14 days leave :if 'they helped to uneartti such sets. 11Tbese sets are THE best far 

intercept work" P.7 sa.:id. 

6. wane ... T Fn ~~T (MU~-:gm:-~!Jt&tJNl, 

~he .AU'mRY V]E~.§_..Q....OJ?!•. 

1 •• H.utory 

(PW warlmd an this ocx1 e tram liar 4.'5 to Dec LiJ+) • It was the narae by mldl the 

Ge:zmms referred to the oale used by trawlers, etc, in oarms v11th lard bD.ses, ports 

ani other amdbary vessels. P.7 could. not say whether tle RN referred to it by' 

thm mne or not. The Gernans Ma been wo:dting on thlS cede sinoe thB ''Br be&Ui. 

Tm Fn Ref'emt (WIHHEN m...llN) dealt exolus:arely vith traf'fio lll tti.is oode 

oovenng HO?£ U.TERS ard .,,Th..1'.'TlD as far so.i.th as !mll!Jl'OiN. 

"r1hen R7 jo:Uied tile J.i'Jl REFJiJU,T the ou:rrent cale-book: had been in use :fbr about 

nins months. The CDle TiflS reoiphered with ihe aid of subtractors tables or be.Ac 

(llU.i.UIBUCli) ?bioh ahanged fortnie,htJ.y. (Cale group subtraoted f'rom recipher e;roup -

Pr1 quoted :f'omul.a lJ..C=F i. a. "iitlRMGRUPPE minus CCDIDRIJP.E'F.::FUNl'"GRti.PPE) • 

PW thought 1bat this oaie book was the ,3ld edition :ln use{?). It had been 

reconstructed to the extent of 60 to 7<:$ with the aid of a previously current ocde 
• REF ID: A65385 • 

-10-

book oa.ptured on CREE, or another islam :bl the MEDJ!rEBR.Jm..N. The captured. 

bode had been :rhotographed and 1Ssued m the tom at e. photostat oopy 1x> the Fn 

Refemt. It bcre tm title 11 !iaV.1J.L COIBJ!i.5"• ThJS llBde PrT conclule that tle book 

:ln use tran appl"ax Jul 42 to .u.pr 43 was oa.lled "X. V...iL CCl>E No 6" 1 but said he waa 

not sure ot ibis. 

The (?) No 6 Cale Book wns changed at end ... pr or be3 at lay i.3, but ihe 

same reo1pher bode oont1:nued to be used. Fra:i beg May 43 to about Jul 43 notbirlg 

was read until a oryptograprer, Cadet (Faehnr:i.oh) LUSEBRINK (later Sub LieutLeutna.nt) noticed tbD.t a~lyrus of lv!EV1 Jun&: Jul traf'tic revealed that ~OON 

had oaitinmd to use tl:E \?) No 6 ooie book for 14 days after all o1her mses etc 

had cha~ed over to tm ne\T book. Th¥1 overlap alloRed the GerDan Navy orypt~ro.pb 

ers to break pa.rt at the rum book. 

In Dec 43 the reoipblr bocic uas om:need., tm cale book introimed in a.pr/!hy 

43 oont~ to be 1n use. The reaipher book er set of tables was nCJff' cha~ed 

S,_a:iJ,,y. The period Of approx tour 'W8eks 0? l Deo li3 to l Jan 44-) was oonsl.d.ered by 

RV e.s a t:mnsition 1J3r:!.cxl, tor an l Jan~ the traffic beca.ue WU'8adabl.e am continued to be so till Dec 441 llben PiT laft the OKM. (Watohes were now - in J,4 - mll\Y 

two per dJBm i.e. 0800 to 1200 hrs am J200 to 2000 hrs). From friends' letters 

to PN, in I'?..LY m 1+51 it appears that results were NIL m 45 also. 'l./han tm 

change took plD.oe on 1 Jan li4 the GOt"IlfUlS started stuiyine the traffic am attar a . 

"1.J.le assumei j".hat tm caie book hEld been changed, once mo:m1 as well as tl:E recipher . 

book er set ot 'tables. They suspected that tm rec.1pbar book or set ot ta.bl.es l 

(imaMBUCH) WllS cha.need da :lJ.y bp' :ma:ns ot use of a stenoil (EINC SClk~) which t 

altered the order m l"lh.icil reciprer gl.'Wp were selected tor recipharl!Jl. ocde groups.~ .) 

B. ~por=wtion of Cale anl Reo~:c;_.System. 

I. ~~~.Ac?.C!t..!. ..., ~ descr.i.boi No 5 Code Dt which ha ba.d seen a photostat COP'J as a fOUX'-:f"ieu:re 

book at 30,000 groups, in rea.li'ljy a set Of til1'te boolm EBoh nth croup; za:ngir:lg trcm 

0000 to 9999. Tm ocile \18.S issum in tm fom of an encode volu:ne and a deocde 

volume, ea.ch in 'three parts. The three parts of ea.ch volume were oaJ.led: 

the Ship1 L:ist - oonto.inl.IJB all RN & (?) US Navy HQs 

(DIENSTSTELLEN) • 

the Ma.in Code - coie book pmper. 

the Geogre.phJ.oal LJSt - oanta.imng all geographjDal JJallBS• 

Code groups tl'Oil1 either of the a/m parts r::£ the oocle were used in ex>njunction with 

iDlioators (.&.NKUENDIDUlmsG!.1lJ?l:EN}. These mre listed at tm bee;inn.:Lne of the volume 

(ema3.e and/or decode) -

Im.JDators 11131'8: SL = 11tollow:i.r.e group is to be ta.ken f'roo Ships L:lst11 

c = 11 11 11 11 11 11 n 11 Ma:ln Code" 

Geo :a n II II II II II II II Geoer. LJSt" 

.. ~ numl:er ot fOlll'-f-:igure erou:p1 were pro'Vl.ded. as variants fer the al.ear :inlioatora 

(SL or C or Geo}. Pif thoueht clecn" Geo ms allotted 20 cede groo;pa.. Spellers were 

used in Main Cale with approx 10 variants ea.oh. The clear w<rc1 SP.Cr.i[, was allotted 

50 oode grWIS. Pit also thought the. t the ccxle (volume oonta1ning threa. pirts) :imlr 

uded o. "battle oaie" (GEFJDITSCQ)E) a.t the end ct the book, but tho.t this ws never 

used by a.uxi1:5al"J vessels. .1..slmd how mcy erou;pe there were on ea.oh pi.ge of the 

oode book, PT 8£1.:ld he \'ll.s not sure, but thaight there vere :ErObabl.¥ 50 to a po.c;e. 

No (?) 6 Code - plrtial~ roacmtruoted by H!.r 43 - was the same olea.r bocic, 

wJ:th a ditterent a.rra:tieenB:nli ot ocxle r,roups. Pt7 lib.our.ht the last bode the Gelt'hn 

.Navy Ozypt~phers rec.d, t.e. in use :f"1Xl!1 enl " .. ir or beg lily l,.J to em Deo 4J1 

was No (?) 7. 

Pil qUDted frcn mme:ey the tolloaril{. Cale groups out of e11her book (?) 6 or 

book (?) 7. 
• RE.¥;1_ID: A65385 • 

Shippmg Imex 

spell 

tran FOOOS 

CJ.O Plymouth 

Geo List 

Shippl.l'>f'; I:r:d ex 

= 9CJ.iJ 

= 2820 

= 9088 

= 6528 

= 1936 

= 3112 

Q.SDIO/CME'/! 37 

(H.B. .1\.ll other p;roups in report are for Em'JD.ple 1s st-Im.). 

II. ~g}-l?}!eE., _qs~ 

Tm recJ:pher book or set of to.bl.es (i1URMBC'CH) cons:isted of ('pprox 100 

J.X'·ees, ocoh ~ga h::.viru 5 columns ~rd 20 - 30 l:i.nes. The Gezmc.ns hc.d. reoonstruoted. 

th JS to the extent of' knav'JllB tha rollowin.:. dett'.l. ls ar its use: 

(a) 

(b) 

(o) 

(d) 

c.t tlB front Of the rec1ph.er book, or set of t('lbles, there wo.s £'. list Of "stc.rtmg 

pomt llld10ctors 11 eiv:i.ne }X'.ge am line on wh:Loh reoipherlllg beeJ.nS, e.g. 8888 

= pc.ge 30 line 9. These indl.co.tcr [';I'OUfS were fmr - f'i(rure erouP3 printed 

on a. par;e nnd hatted. 11StllrtJ.l'l8 point'' ma.::i.nt nlvm.ys the mJddle crroup, i.e. 

the thJrd.1 on ony r.;iven lUJe. 

•11th the a:Jd of a sepirote table - on the ltl.st rnee at' the book, prooob)¥ -

these recipher J.nd.J.OO.tors vrere conoufJ.ceed (reoipherad once more = UEBERSCI-ILUESSEl:iT) so the.t the :ud10atar which v.ns s:ignal.J.ed hc.d. to be broken before 

fiml.ng the group giving the "startmr; point;". This 'table a:>niained b:i..erams 

mneing :from 00 to 991 and against these were placed tlE oamout'le.~ subtro.ctors 

for any "unreoipherei" l.l'd10ator "ro ... p. Thus: 8888 = pD.ge 30 hre 91 is subtracted :f'ran 7818 run oamcuf'1&eed to 9030 am. thls process JS lndJ.a3.ted. by 

meaas c:£ biero.m 25. PVl stated 1.te.t clerks at oK:M had told h:un tba.t at tbl 

bee:innllJ6 ot the "War the recipher md:i.cator 'hBs not cwnouf1acad. BJ.[9'."llr.1 25 

•ms signalled as J;B.rt of the five-f:ieu:ce reoipbera:rfl caie lldJ.Cater ::.,I'Ol..p 

in nessage, see III. belO\v. 

recipher p!.ges er tables were divlded :uxto pages (or tables) far reoiphermg 

addresses a:ni sieratures a:r:d ,pages (or tables) for recipherll'JG text. The 

Gerlmns thou[jlt that even pages (the IJlges on the left of the bock) were used 

for reoipmrl.ll[, addresses am s:i.gmtures ard maxked th.em in red, (der J.Ol!~ 

WURM) am tho.t uneven pa~es (on the right at' the bock) were used fer rocipherlllZ text am me.rlmd them J.l'l green (der GROENE "1/tJRl.i) • ThJ.S continred till 

Dec 43, after whl.Ch. d.."'te all recipher ei"Cll.IJS were t.~len fran the sD.ll-e ]?C't;es ar 

tablas, the JD.tter chc?JGJ.De 9-.£l.],;y• Tre recipherine of a iness~ge :i;rooeeded Jn 

thlB mtmner: D.BSUIIE w10WJ.oufl£ eed recipher J.Diico.tor to ret'.d 8888, "filich 

mECns 11 startinc; point'1r'9 J.S on po.c;e 30 lJ.re ~ (c.J..ways middle - 3m - [',.I'OUp) am 

tmt the address J.S Sl.X groups lone; the 3rd, 4th c.nd 5th f",,I"Oup8 Of lJ.re 9 an:l 

the lat, 2:ni D.?li 3Id GI"Cll.Ps on l:u""r,:} 10 ot pa3e 30 1(even, red) would. re used to 

recipher tre encoded address. The fl.rat encoded r.;rou;p of the text would thim. 

be re01phered by I1'l9a?JS of the 4-th .7.roup cm l:i.m 10 ot pa.c;e 31 (lLTJ.even, green) 

a.rxl so on, ard J:f' the text vro.s lone;, tne lst croup, line 1 on pace 33 wouJd 

be used, etc. Siem.tures were NQi' s:iemlled.. (Usually o. :nes&i.[,e - m oode -

contained address onl;Y" J!" !.!_t:mnsmitted b-.r ·vrr sto.., eto; i.e. in OD.Se of ®ubt 

as to who criginntor was. Otherwise there ws NO nddress either. E.[.• ((RED 

subtracter) SI (No) Fi~Il FOOOS (GP.KE;i' subtracter) text). 

Rec1phe r gro,ups (4 - figures, .-re re subtracter r;roups f.e "lilich oale GI'OUIS 

(4 :figures) '\/ere subtracted (non-ca.rrJire). The Germi.n c:cyptogre.prs o.t 

OKI{ used the forillLllA F = _, - C i.e. mro~:ram group (:FUNK GRDPIE) = reoiphcr 

r-roup (iro:m" I'l'lllUS code r.rroup (COD:IOCPUP.l:'E). :a.g. W 0000 

" ~"'I .... OF --~-

(\V - F will equal. c) • --gB'70 

I..lI.Tre.tf:io am lid:J:fS!!-tors..!. 

Intercepted r.Jesso.eeis hod the follORizg lay out - p,r quoted. an e~ple 

troo mmc>J1' (fieu.re groups NO? real) - e.g.: 

(see orer) 
REF ID:A65385 • -J2-

llr,t1, : tO Ill 2 ~ : '\i = 2m'(.I IS 2.5 173CJ3 

25000 9030 ..... •••• • ••• eto 

• • • • 9030 f.SOCXJ 25 li30J3 

wbere Jal~ (sc. ... :a .. 'WT ata.) :is a Jani l1T st.a, 

11 2DfJ{ n 11 trawler 

II W' repeated 

" 2WWX " 11 travtler 

11 25 173Cl3 " Ia te a ni TOO group 

11 25000 stands fer bigrem 25 oamouflarseJ.n8 tbs reoiph!tr 

:Lnl1oator ~roup (8888) to 9030 ~ 000 oale book 

llli:laat er (VEF;.HRENSICE:NNGRIJPH':J lOO variants 

pr ov:l.decl) • 

11 9030 is oamouf'laged recipher :Lni:icator (8888). 

c. OryptograpAY; - Methods a:rd Resul.1!!_~ 

I. Sortg of Txaft:ifJ. 

' Intercepted traf':f'io brcught to OKM SKL Chef MND III (after l ll&y ~ 

I+ SKL III) was f':irst s<rted out e.oocrd~ to ocxle books (VEF.tJmEOO :1n a dept 

ret'ernd to by B7 as th3 VERrEJiiCOO (i.e. TR:~F.B'IC SCRTlNG OFFICE)• This \18.s d.o:ne 

by olerks instruoted, to do tla scrt:i.:ng by looking far oertain olare.atenst:Los ll1 

the preamble a: 'the messo.ee (Fu SPRUCHICOPF) • The details oonoerm.ne tmi'f'io in 

all types ar known cod.es (reconstruotoi a:- wder st\1\7) were supplied to trai'f':to 

sorters by the regJStrat1on or inieXlllg persozmel. 

II• ~aldll,s the Jle-9..~1'!.!~ ..-,At41_<~!J..l1Jiedt. 

Tbs :next stage was the reimaroh a.rd/or work an break:mg 1he reo1pr. (IiorE: 

Messages aa.m.e to MUENCHEN BR. .. UN where mil.y om type at oode vas beine woriced on, 

so that <11ce at~s knew the tra.f'f'lO \18.S :in that oale ( ... lJXJLILl« VESSErS OWE) i{()rk 

an breald.ng the reo1pher went straight ahead)• 1 ... t all pericds PW was oonmoted 

with OOt this 'll'O.t"k prooeeded more QC' less on tbe sane lines. Pi is no or,rptogmpbar am oan ih~refore not describe how the reo1pl'er was first brdken, nethods 

ot approach eto. He oan, ha:1evor, describe tm "drill" :1n some deta:i.J.. There 

were s :ix methods ar ways lll whJDh the reo ipher book or tables oauld be broken 

(Mar li3 anl earlier - Dec 4-3), These wares 

(a) with the aJ4 af' t\ro ar more DBssaces w:l.th tb:I same iniioatars, SD.y massages 

it. am B both starting ard eni:UJg with 25000 9030 (9030 25000). This constituted what the Gerna:ns oalled 11 eim SERIE", It amounted to w.D.Eklllg an two 

mssages reciphered. nth subtraotars taken from the same 11 startllJ8 po:!Jtt" in 

tbe book, durmg the same f'ortnie-)lt. 

(b) with two or more nsssages with the samo "suspected" reoipber group {mit 

selbem "VEJ.:mt..CHTS\itn14) , 

{o) with two or mare DBssa.ges oontairnne chance repeats (durah reim DOPHLVOHK.CIDAEN) 

- this tas done with the al.d of' HOLl..ERI'lH ma.oh:ines. 

(d) 1hroUfll "rolling" (durah ROLLEN), a process moeasitati?E the use of a dev:ioe 

called tlB 11ROLU4..SJIINE11 {see Lppx. "D" ~ report) whereby eypothBt:LaaJ. DBI'-

aon:lgram gro\jps wre forlmd with the a:id of knovm mroon:igram. eroups (":Bilden 

von kuenstlichen F\1'-~ruppen du.rah belmnnte JlU-f..ruppen") 

(e) tb.IOUt=-.h' {breakll>8) dec1pher111g fl :udioator grwps (durch Entsohlueasel\11'8 

der E:uma.tzeruppen) e11her (i) through a "chain at :Lniiaatars" (eim SCHr.iUESSEL-

.. ~ "( Dl'Tll) 

or (111 through a ''.l."izla • of inclioators.11 (ein S(llI~­ RING) 
-t;F_:F.F ID: A65385 ' 

JII. ~tJ&kirf; the J!.6Cl:_l?he:r:,;:..~ta;_l,!!• . 

E.g. messages ... a:rd B: 

l) 25000 

2) 9030 

3 pen 

(v) vpu 

\"'!'.' 

') 2560-F----

4) 1735 4755 - 30~ 5} 8020~!__ __ 1S75 

6) •••• 

7) •••• 

8) •••• 

'@ 

.:-

.... .... ~ ® 

ship 

am 

authcrit :iss 

:in 

area 

l) 25000 

2) 9030 

B 

-

gb::xz 

{v) mta. 

3) 1500 172&-1112 (V) 

4) 9035 . ~l~5 5720 

5) 60-,0 9995 

3D25 

6) Ul8 

7) •••• 

8) .... 

SCAPA wr 

wea.iher fareoast 

tW/until 

By mans of oall-sic;ns at arigimtcr am addressee a :f'itt:i.ng (suitable) 

clear text '\'ms assumed for meshage ... ~. The oale graips ccrrespondme to such clear 

text were looked up am '\'ll"'itten Ullder the lllle in place :marked a, (dra.rm lll black 

pencil), say 90li-01 30201 1975 etc, a.Iii then the 11 suspeoted" subtracter (VERD.i;.CHTS-

"IDRM) group Was calculated and uri t-ten a bave the line m blAok pencil, m place 

mnrked.@. (U-:;F+O). Tm ''suspected" subtn\ctor eroups :in the above e:xEllilplo v.ould. 

h.l'fe been l500J z,.755, 9995 eto. If 1 w~n appl:i.ai to messaee B, these "suspected" 

subtracter groups (15001 4-7551 9995 etc) eμ.ve code groups, say 0882, 57201 3925, 

mich steal for clear text f'itt~ that -cy-pe of mssar;e, tren the "suspected.'' 

subtracter sroup was "oonf:zrme:i 11 (der "7U:nn \IUI'de echt gemacht} and UJJderlillllld in 

red ani :registered as a conf1I11ed subtracter gc-cup (Echter 1u:r:m). It could be used 

for the current :f'cr~~t. The :Messa.~es ..... and B were then sald to :rozm a ·

1

SERI'.]·1 .. 

If "three messages were in a 11SERIE11

1 work uould be eas::isr, he.ever this \'Bs not 

atten the ae.se• l-lben, dur:mg the work af break~ the reoipmr (~IF.HEH) the 

po1.1t was reached \1here spellers vere used, progress was slafer, buli headway could 

be mde goire fran 1-.. to B and then from B to .... , ti ttmg m syllables or letters 

m om and cont'~ 1hem in the atrer I"'essage. Tllne am date eroups helped in 

the vrork. Tl.me was emoded sa:y 18 (group) am 00 (group). Cryptogra];ilers al:ways 

tried 00 f'irst. 

'rhis method ms always trial first l:Bf'tre gOJll8 over to (b) er (o) etc, 

oo lcn. If' messages w:re af the same length this •es oons:idered :t'avourab, .J and up 

to 7CJl/o ot the text of telegrams could be read. Tre Germans estimated to intercept 

ab mt six pairs of n:essaees Tr.I. th the same in:iicatcrs per day - thus getting six 

''SERIEN''. Such coourences vrere all the more frequent the nearer the. em of tre 

15 day pai:-iod a.pprcaohe:i. 

(b) Yessages.~th t~J~ ~S-~.J?.69ted.;J'ea:LJ2heU~1!..9.:t.or) e;rou~ 

~it sel:,~.zn ~~f!iT-~~· 

~;iale: addresses (call SJ.em) of message: 

:Cran: (v) m...:.. = SOAP.ti. ··II! 

to : 2 GZB = G GZB = GDXZ = T...~ (tra\-Tler) with SI oale re.me ot 1230 

¢m~E: GBXZ JS oall sign af ship from the "INDICATIF d• ... ~PPELS" snooded to GGZB fl.nd 

reoipmred to 2GZB). 
REF ID:A65385 • 

OSDJC/CJ.m'h 37 

B.g. oontents of mes sage: 

l) 9JJ45 

' 

2) l2.50 

3) 3020 :I~ 4) 1590 riro TANGO 

5) 2535 = (V) FOOOS 

6) •••• t t 

.. . \ 

Tm CA assumed that group 3020 

stood for olear SI am that thlB 

clear oonoept wu an.coded by means 

or oale grO".ip 9043 (knorm) • He 

then oaloula.ted the "susp:toted" -subtracter (VERDACEiTswwU}, i.e. 

20631 and :markbdit mth a rad dot 

(.in place ma:dced ~ to shoa that 

it :ls a "J!uspeoted'~ subtre.otor. 

This was dcae mmtlg for addresses (red subtmotcrs). These "st.B p;,oted'' subtraotors 

were then llilm:ed (RmlSTRIERT) ~ it anbtler "message with tl:E same "stspeoted" 

subtractor: was f mn:l it Tas placed. next to the first one to be worked on. :riovtever, 

the seeoni message bad to shOVI the saDJi "suspeoted" subtracter er<>iq> (say 2063) in 

either the BB.UJel place in 'ijle message (;Ln thjs case 3Id group) ani the mess&~e \""8.S 

then referred. to as an ":identical k:eJ' series" (eJnO SCHLUF.S3EI.Gr..EICHE SERIE), O.t' 

in a plaoe at intervals of 5 {mmber of columns in the recipher book) (HIASENGilrIQI) 

i.e. 8th, 13th, 18th group, etc, m ml.Ch oase ·it vas oalled •·a biter series" {ellle 

BISS-SERIE), AND also the subt:mcttor had to be c£ the same colour (red or green). 

It the "suspooted" stibtra.ctor, when applied to both massages, fomed a "SERIE" am 

yielded clear text t:L ttJ.ng thesl.1- 'Wo ~s.ae;ees., thll sub"':ira.ctor \las oonf':umed, un:lel"" 

l:i.md in red am regJ.S~red. Approx 5 ~irs of "llessares oouJd b:• broken - up to 

70fo. of text - every day. ThJS WJl.s an average figure, N saJd, results being 

always better towards tm erd of tl:ei •15 day p:llrioi. Short messages yielded go<Xl 

results, because it YBB kna.-m in tblS oase that the subtracter ~t be green 

(text ~). E.g. message intercepted: from a tmwler to GlUMSBY or vice versn: 

5 4 4 5 

J ~ ~ • 1 1 -;-;; ;-1 r; ;~;1 1 • .. • 1 r;-;;-.-, c;;-;; • J 

text text 

Te:x:li JS titted m suoh as: s\veep completed., or 

request gate eto -

or if f'ran GRD1SBY 

- to tre.wler e.g.: gate armne;ed. 

This saved a fair amount; ot time as fewer possihill.ties (plaoe of clear text am 

subtmctors) had to be tried out. 

(o) With_~-~~t..!'!'..2.~e,!_ ~~~~.!9pea.ts (r~iI'..B DOPPELVORlCOM1D!!) 

E.g. 

A 

- l) 25705 

2) 1635 

3) ~59'0 

4) 995i.. 

5) 1718 

6) 1925 

7) i1n 

8) 8536 

! 

35999 

7984 

l590 

7638 

With the a:r:i of HOLLERITH machines 

pall"B af' - or core ·· messages were 

0 1-,ught l.n vhich the same mroonigram 

group (Fu ·C.RUPP2) occurred m ~e 

Ba.I!le place, remor..d. a.t an llltorval 

of 51 or multiples ot 51 grbup:s 

(HiAS::filULEI:CH) ; i.TJ. 1his J..TJS ta.nee 

0th, 13th grot:g?, e".io. PH sal.d that 

l.n approx 5($ of cases this .m.s 

mere colllO.ulencc (ZU'.!:1.U·L) i.e. 

subtracter X Z 

cede Y ...... maroonigrem group 1500 

u 

1500 > 
• REF ID:A65385 

-i5- • 

the paroentage ot co:l.no~enoes (50J') being raigbly the sa.me f'o.r both red am green 

subtraotors. However, all cases were tried out and lt, say in the above ~ 1 

clear text titted in message A (3rd. grcup, 1500) 1 the same o.Jaa.r text wa.s assumed 

to he 1n the 3.id group ot message B as well. If' tm aaaumptio-n proved. to be aorreot, 

about 7af'o ot the messages oomernsl could be read (Aug/Sep li3). 

\ 

(d) J!inll.Pg ph-s ot, mes?Ses C'SERlEN") ~ 11 ro:i_;L}n&'1 (dut'ch Roμ.EN), 

Th:is work was done mtb the ass:lsta=e of' the "RCU.11 Gru.pP' (see i:am 3. 

o. I.o am A.ppem:lx "D" d report) ani by uslJ>8 mter.i.al. sup}il.::ied by the Hcu.ERITH 

mobine (?) sub-seo. The varicus stages of the work are listed belovt: , 

(1) • with the a:id ot H<U.iERITH zmohines a oatal~ue -.a drawn up, af''all 

mroan:lgram groups UJ.tero!P~ lJ.Btina groups in numerical crder, 

from 0000 to 9999. 

(ii) - 1he o'l.ta.logm of' intercepted ma.roonit!;ram e;rou.:pl lJSted tra.tf'ic for a 

t'ortn~t e.nl eei:arated - by means ot' muk:i.ngs - red :rran green subtmcto~groups. 

(iii) • hi[jl trequemy lmCBn oaie•groups were tmn set on the maohim (for 

"drill" see .Ap~x ''D't or report) • 

(iv) - all known conf'l.lDled subtracter e;rcups (bekanute echte WUERMER) were 

then taken out of the ;reccmstructed recipher book (wtlR.MBm!N) e:Jd 

put 1hr~ the r.e.chire in ttle hope or eettl.ll8 "artl.fioial maroanigram 

grou.IS 11 (KUENSTLIOHE FUNKGRUP.PEN). Tbase were lookBd :fbr :in tile 

oatalogue mentioned above am i.:t fouDi to ooour in two nessages in 

the SBDe place, or at mtern.J.s of' five, or multiples of five, the 

Dl9ssages :in whJ.Ch ihese 11artif'icial. ma.re~ grmps" occurred were 

looated a:rd a. P8!ir ~SERIE'') :f'ormd. Tho worlt •s ihen hE.nied mer to 

o:ryptogre.pl:Ers ("WtlBMZIEHER.11) • 

("1) - the or,yptographer(e) then proceeded. along these lines: E.g. mssaees 

A and N :-

(vi) 

(vli) 

••••• 

30 15~ 

1738 ~ 

•••• 

•• •• 

etc 

N 

-

••••• 

., .. [[~ lor in Btti, l.31h, 18th 

groups, eto. 

- the code-group (e.g. 90li3 = oaie fer SI) '\'8B lOlOiin. The cryptographer 

then trl8d to :f':llii cut it the 'hrt:ltia~ maroorWtram group" 3026 

fowil to ooour in messar;es A am N were a recip"hered version at the same 

ocde-group, or vtiether it was perhaps a oo:llloide:noe. In the latter 

oase the messages wem sepa.mted, no pair ("SERIE") boine termed. If', 

however, by fittirlg in a oode gro~ :far relevant clear text, that 

ocxle-grou,p appeared to have been used - wi1h reoiphe r - i.., maldng up 

the "art:l:f'ioial. ma.rooni.gram gr cups 11 JlO\V taml :in tbeEid. messages, then 

work; prooeeded on tle two mssaces A and N. 

- the messages Trere tmn pJa.oed s'Xle by a:lde a.nl tle sUbtra.otcr e;roups 

wbJ.oh had been used to reoipher ihe kno\m. aode groups in mssage A \'l9re 

applied to the so.me (or relative) mroonigt"Bm groups ("art:J.f:Wial.11) in 

message N. 

(v:Lii) - Pi stated tm.t thlS work was do:ns at the em at tm l.5 day period. 

(i.x) ... results W:De ma~ ~ historical interest. 
• REF ID:A65385 

-16- • ~]:9/CMF/I 37 

(e) Finiinp; J!~S of messages rSl!ll'[!flN"J ~ans of breakil'Ja er deoiphe~ r£ 

@icntcr fiUili fdurch Entsch~~J.nm._~er EINSATm~or) !CENNGRUPP.EN) •• 

This could be done by attempting to biea.k 11a chain of' indicators" (e:l.DB 

SCHLUEssmiKED.1TE) or "a ring or llllicators" (ein scm.umcmr.:aoo). 

(i) "A chain of ll'Jd:loators". 

A pair or more nessa.ges (·'SERIEN'') f'ounl by ot;her methcxls (a - o) 

were recpi:red. E.g. 

. 

A. 

- .?2,000 

1527 

•••• 

•••• 

B 

- 2!_000 

--57],5 

..... 

• ••• 

(NCJ.rE: It did not mtter if trigrams in 

five fJgure grop were the so.me or not, 

because they imioated type or ocxle bocik: 

and had mey variants. 000 could be the 

same as 12J1 eto1 m clear.)• 

~ .. sUC}2tl.Oll: The messages b. am. B, be:wg in the same "SERIE" 1 have 

actually been recJ,J?hered by Means of the same tC"ble a:rd the recipherizls proceeded 

t11aa the same "starting point " • Grru!B 1527 ard 5715 are oamouf'la.ged ( reciphered) 

"starting point" JnlJCo.tors, the four f'ic,ure graip nth ilbl.ch reoipher1l'.E was done 

being :udJ.Cated. 'btJ bigra.r.E 25 am. 51 respectively .. (Cf' pira 6.B.II.b.) • It was 

therefore assumad that the unoa.mouflaged 11 startlll(, po:i.nt;" Jl'ldJ.Catar in such a on.se 

was 0000 (die REC&ATr'1'E GRUPPE) therefore tl:e oa.mouflaee or recipher groups aga:Lmt 

bJ.grams 25 a:rd 51 (on 1£\st pace or reoipher bock} would h!lve been 1527 o.n1 5715 

respectively. (The Ge:man QAs referred. to 0000 in th1S oa.se as b RELATlV GRUPPE). 

These "assumed" recipher group3 (die a.~enannenen WUEaME) were then used as subtracters for all reoiplEred (ca.mou:f'laeed) lJ'dioa.tors m n:essa.ges with b~ 

25 am 5l v.tiidl had been registered, and ,,7ere outs:ide pairs ("SERIEN''), far the 

15 day period. (Recipher mdic::i. tors (EI!'iSri.TZGRUPP.EN or KENNGRUPPEN) were regJStered 

1n num.er:foal order ftJr easy :r:of'ereme). Thus: 

Messa.see (kW) 1527 

with b;ieraJm: 

(F) ~ 

6537 

(A'\1) 5715 

(F) ~ 

6949 

1527 

5715 

l245 

4-570 

"X" 

1527 

1956 

L.CU:t 

== ·== 

5715 

''Y" 

1527 

-6-71~ 

3818 

5ll5 

6633, 

9182 

The oamnon di:f't'e:renoe Of ltf;ll WJ.s rego.Ided as pr:-oof that tbe "starting point" 

im:i.oo.tor - unca:mou.fla.ged - was tm same lll ttie case of these two messages (X am 

Y). The oCQ?Jsmellfi at ~his dittere:noe (6439 = 0000 - 4b7l) was iakm aa the 

difference between the oJ,":lg:illfl.l reoiph:lr (cmnouf'lage) groups tSed to oonoeal the 

trm "startll8 point" :ini:ico.tcr. A. new "SERIE" was thtB f'ormED.1 it be:mg assun.ed 

am flt'Oved. tbat, um.er the camouflage 1 messaces X am. Y were reciphel.'ed. with the 

same subtractor (WURM). Tha pair ot messac;es "Was then hnrded over to oryptoeraphe rs, 

who oo.rr:1Bd on worlcine as at - (a)--------e.bcwe,, 

(ii) 111. ri:ng c£ ~ioa.tors". I 

I 

TlUs -wa.s achieved when, by tQ....'!clllg all I:B ssa.e;es with ~ b:i.gram reo.J.pher 

oamouf'ln.ge llliicators, tre "clam or :1nd10ators" coaJ.d be ccmpleted fer traff'JO 

passed durine the relevo.nt fbrtru.ght. In smh oases all messages oruld be lJ..l'lkad 

together v::ia their bigron recipher camouflage :i.ndioators. (IntetT"fPtor's Xote: 

PIT was not very l;nOW'lEdgeable or certain on ttn.s point) • 
~ ID:A65385 • _, ___ _ 

.. 

OSDio/OMF /Y 37 

E.g.: 

lia:mms: Camou:flo.e;ed recipr miioatars: 

25 

SL ~··· ••• 

33 •••• 

41 •••• 

•••• eta • ••• •••• 

~:: •••• • ••• 

• ••• ~·· • ••• • ••• • ••• 

eto 

l~rrows show oomm.on dif:f'eremes between tho two four-f ~"'llI'e inil0a.tar-g1'"ou:ps 

oomerned.. 

m stated. ~t this met.hcx'i ( 11 ohall111 and "rilu of l.n:hoatcrs") a.llCJHed the 

GellllllD3 to break into an additJ.Oml 150 - 200 :pe.:irs ot :nessages ('SERIEN"}, but 

that these msso.ges could all.y be rElQd to the extent of 20 - 30J' ot text. The 

work \\QB dom at the em ot the fcrtnicht and took nbcut l - 2 days. It was dom 

by the extm-wo.tdles (PLUS\'fd.CHEN).. This b:roueht the total of 300 - 400 pe:irs at 

messages ("SERIEN1') per fortnl.Jht - found 'b-J metticxls (a) to (d) e.bove - to a.pprtllC 

soo - 600. 

(f) DJ.fferencinp, (DIFFBRENZIER!N). 

PW desonbed 1hJS methal as "a variety of roll.J..ne'' ("Eine .la.be.rt des 

Rollans"). Two kl.Ids of dJ.tferenclll8 \/Ork were dam at a:o.r: 

(i) ... dlt'f'erercllJB as an ald to reoiprer anl ocde break~; this was always 

dom with the aid of the catalogue of dl.fferenoes (DIFFEREl'{ZENKt~TALOG). 

(ii) - dlf'ferencJ.ng done for tre purpose of firdme pa.l.rs af- messages ("SlJRIEN11 ) 

e.ni "biter serJBs11 {BISSE zu Ser:ien); this type of \'lat'k was begu.."l ll1 

or after Dec 43 when the Fo (FRITZ DrTO) Group was speoJ.ally fozmed 

for ttiat purpooe a.nl carried en workmg en cld mater.i.al aft~ ' Jan 4liwithru t resul iB. 

\, 

This was done wlB n approx 20';& of the OcXl.e boak v.c.s l01CAY'n, rot before.• 

Two messages in a p:i.:ir ("SERIE") were mntai. Ea.oh group lll OJJe messa~e mis "ditf'ereno~" ("DIF.FERmZIERI'") th"OUgh all srcups in the other message ani vioeversa. The sn'llUler dlt'ference was a.hvays te.ken. DifferenoJ.IJg ;ro.s always dono 

by bani - PW sail no aalculat:i.ng mch:i..res were 3Ver med at OJ<l.I - ani all results 

were catalogued from 0000 to 4999. 

90li-3 

6528 

3525 

oode for SI 

II II 0 ll1 0 PLTIY!l:Cll1R 

ca talog~d = SI - 0 l."l 0 Ellld:Oum. 

Wo:rlc prooeaied on the pr.ineiple c£ F1 - F2 = O~ - 01 when the ea.ma stibtmotor \"Bs 

used ("wem der sellle Wum. Zugrorde liegt"), vMere F1 and F2 are naroonigra.m groups 

(JUNKGRUFPEN) o.ni 02 a:rxl 01 are ocde Brou;ps (CCDIDRUPPm.c~ 1 :i.J.1 nessages 1 ani 2. 

Or,yptographers resorted to dl.f'ferencine; wmn attElilpts to bre'lk tl:E cale in a pur 

of mssages ~SERIE") showed no results. Tm gr:iup(s) m the mssages where Cf,.s 

stOP,ped, were dlfferenced (smaller di:f':f'ereme) same pla.oe m message or intervals 

of five), a :rd the resul t:iJJg fOU!' figure grrup 'W!ls looked up 111 the ca ta.logue of 

dlfferemes in an attempt to fmi olear groupc y.n.J.Ch m:ight fit in both mesDO.geso 

Thl.S ss done separately for red a:ni green subtr· otors. 

Ness&ses: 

A· - I. 

- 8765 l234 

•••• • ••• 
• REF ID:A65385 

-18-

~C/OOLJ 31 

th& d1f'tel'Ome betT1een the llth group1 in .LJessages J. end. B i.e. 'j'S'f'J was touni 

in 1slle aa to.l.CBue to be tor :i.nsta.nce: 

differeDCe bet-;1een: 'W&.iwIUIR 

SI 

FROY 

8PE[i[, 

eto 

a.:ni &IL 

NOIC HOiimFiJ) 

P.EPBf\TED (W) 

GEO LIST 

ate 

I 

It :none of the above fitted in the text, dlf'ferencmg for grcups 121 ar l2 a.Dl 171 

or l2 am 221 eta, weiia- tried, and so on. RV stated i:ho.t many c.&.s pttef'erL'ed to 

avold. ditterenclllg 'YIOrk, say:iJ!e that "there were too :mmiy pca.s:i.b1lities 11 to \rork 

on. 

II - ~§..remim for pgpose of~~-~~~.<:.·~~. 

ThJS ty'J;E of 'rork, 'Wh.UJh 'lilfi\S dam after the em at o. current fortn:i.fti.t, 

:necess:i.te.ted lmowledge of the cede book to tm ext;ent of ~ - P« did not explAin 

why GrCllp FO (FRITZ OTTO) persisted in carrJll'le; on walking after l Jan 44, when 

both reoipher o.nd caie cha.need. 

Two messages lihich were Nor in ~:ars ("SERIEN11

) and were "rcutine ma-ssc.ges", 

were picked out. 11Rout:i.nis imssa.ges" were reoogm.sed by .mecns ar their preamble 

{:USEllRUCHKOPF) • PW qμ.oted. f'roI!I. ITJ.eJI10IY no.r.ies of atas s :igna.llmg "routJre msse.ges": 

FRlml'OiVN 

SC.uR 11E."1.THER 

AIG 31 

&TSTONE- ~ 

S!IPS TO ROSYTH 

(QZS) (~tes) 

3 Ji.Di (~P.A) 

3 ~ = ~IG 298 (HlLYHE.(J)) 

COAC - IiJi.LIFJ-"~X = ,,;'LIG 'CJG er 312 

.AIG 54- -

I la.ll groups J.n t\vo meBSllij6S c£ ih:i.s vpe had. to be dJ.f:f'eremed plo.oe fer 

p:!Lloc anl a. t int~ls r:£ f'ive lf!r~CH and Hi';oSEl-mLEICH) • This was ha.id 

work, Ptl said. am md to be done by hazd. pq -w1a.s Of the op:L'"llon th!l. t with tm 

HOLLEa.Im nnchl.?lts aw.1lable to OKU this work 'rwll not have been ::;ra.ct:i.ca.ble by 

mechan:ia!:.l nea.ns. 

!rhe fonnu.lc. on the ba.sis or l"iu.oh tti:i.s ucrk ~s done l'il\S: F'I - F2 = D, 

were P:L anl ?2 a.re ~anJCram r.roup; (F'UNKGR.UPPEN) a:nl. D :is 1he d.:i.:r.t"ereme betwce.1 F1 a.Iii F21 ".1hetrer l.e.ree or small (F2 al. 7J.YS su'btre.cted from li'l). :'rcti 

th:iD 1 D + Cl.= 02 Vl'l&lrO Cl I~ 02 rro oale group'S in messages l. m'd 2. Str~ 

or paper were used, lile the one illustre.ted. below (X), on whiah were zmrlmd.: 

massages, say A and B1 1.e. all groups J.n B subtce.cted from their oppa:iite numbers 

:L"l .\, the relationship at erou~ (STELLEl'iGLEr:ClI or :art~sn."GLEI.O:l) am tm differences. 

E.g.: ~ 

A - :s ~~Y!i~ pa,m: 

~ (Fl) (F2) 

l .. 5 9043 - 7654- = 2l,S9 

J.) 2499 0015 - 993.3 = 1102 

2) JJ.02 9091 .. lJ.23 = 8978 

J) 8178 

Z..) •••• 
• -~F ID: A65385 • T6P 5i!ERE -----· 

On another strip of pD.per ((Y) be low) were written all knOiln oale groui'S wh10h 

ocoured most t;eqμ.ently in message A.. Assuming "rouhm n:essageH, was sent :from AIG 

31 a:ni :fbllar~ g:roupl were :5nJJ.udll: 

SI 

bouni 

sail 

PLYMOOTH 

(Y) 

= 904.3 (real e:xampla) 

= 0033 

= l234 

= 6533 

Strip (Y) was then plD.oed um er strip (x) md graips , ed. lZl the Ba.Im places 

·or at intervals of five (S'rECLE llUER grm;.;m CDER mASEl'c1GLEICH • 

(X) 

b. - B 

!HASE l - 5 

l) 2499 (Y) 2499 

9~ 

JJi32 

90liJ 

•••• 

•••• 

It was then assumed that llt32 we.a the oarresponl.i:n.g cale eroup m messa50 B, 

ul'lder reoiprer. Code group 1432 was looked up in the reconstructed Code book anl 

if ihe clear word or syllable or text fitted mssage B, it "Zs assumed that it 

;m.s ''good" cm. the next grou;p m.s triad. RV 1llustrated thJ.S as follO'.m. ..ssum.ine; 

1432 m message B (v) :Fm:FJrOi.YN = spell ani the next e;roup was tried anl - spellers 

bei~ e:x;pecteQ. - this group was either Ob. or MD. .n.s a fair number of Spanish e.:nd. 

Portugese ships were lalcun ix> aall at FREErO.VN 'the spelle:m CA or MO could be 

assumed to sta:rd for the fJrst syllable of CA.'BO or MONJ?E respectively. If the 

next group er two f'itted the :o:essage, the tull mme of the shiJ?(s) could be fond 

with the a.ld ot GRCENE?..' s Hanciboak of 1TorJd Meroa.ntils Fleets lT:~SCEENBUCH DE:l 

iiELTH.~:ELSFLorTEN). (B'O"Ge: tti.ese mercantile ships lusts etc. were uset'ul ency 

m case of neutral ships bell'!l'; ment io:ned in messaees) • If e;roups thus f'aml 

f'itted tl'e messages, the sul::f;ra.ctars (F - 0 = TI) were recJ.Btered am. also tried 

out by "rallJ.ng" (ct (d) above). 

Pi1 stated tmt tre main aim of 1:his mthal was to :rinl new oale group:s. 

Most successes were achieved nth FREETOWN t:xaff'J.O. Bell'lg m possession of 5~~ 

or code grO'Up3 (reconstncted) tre Oryptoe:xaphers could get up to 7c:F/o by n-orkine 

a.ccordiJl8 to thJ.S :ciethod. 

IV) ReG:i!_t~:um or Cale group!. 

This was done by o. teara of three men referI'Sd. to as code-interpreters 

(CCDEDEUTER). All decoded ma.ter:ia.l went to 'them ard ood.e graip were Elltered. o.n 

oams, 'VJ.th :inlioes at f'requenc;Y eto. Code groups were olasslf10d a.&: 

(a) Gemim code groq:>s (mfTE CODE GRUPPEN) 1 n:nrked inth too crasses and 

underlJ.md ll1. red., 

e.g. §E. i 
• ~oJ:D:A65385 • !9!' BBEltB! 

CSDIO/OAiF /Y 31 

(b) Halt•gm.uine caie grrups (lWiBECHTE CCDE GRUPP!N) 1 narked only with one 

oross. 

(o) 1.ss\IDBd oale groups (UNJ!DHTE CCDl!GRTJPPJ!N) - no mu.im. 

;.. oale group was cans:idered to be genu:im if it :rittei :1n appra>e 100 plo.ces, 

half-genuim if it f'i tted. in appl'O:x 50 plaoes am an assUDBd Q'le if it oooured in 

approx 10-20 pJa. oes. 

7. WORK ~T JU REE'ERAT (FR.~T) .. 'I.ND O'.IHER SUB--UNITS 

A~ The Fmnkfurt s~,:tem CVEB!-~ ... }RlJmURT). 

ThJS Tes 1h.e cover lBID9 for an RN cede used. qy sh.1ps ottler than .. ux:U:iary 

vessels. RI thoueht it was a hl.f'ft gro«ile co:le used by Flag Of:t':lcers as well. It 

was read till end !1eb 43. 1.fter that date NO results were onta.med as far as Pi1 

knew. 

B. RN am US Navy Tact~__!_Caies. 

I. Gemral 

---

Prf stated tlnt o}B.raoteristJ.C Of DDSt Of tiJ.ese odl.es Was the fact that 

they 1rere all letter-ocxles ard that onJ.¥ certain letters of tre a.lpte.bet were 

sie;;ralled.same codes wez:.e read at In'i;ercept am DF HQs a:rd/or Stas onJ¥, sOCle 

were read at the OIGI as rrell - see below. 

PR remembered details of "'Jhe follow:i.ng cmes: 

LO.XO -letter oaie am t}]3 CO:rox {!i,.-letter oaie) read throughout 

the var till ? ltJ+,. S'f:i.TION 31 at SCIJTHEND transmtted tra.f:f'JD 

lll these codes,; WC!:'k was done m Fq Group. 

Ml!IDOX (? 3-~ti_er caie) 1 used in th~ MEDITERRANEl .. N, was read J.ll 'liJ+., 

NYKO Or-letter code) am tm SYKO .i~lette.r cale) were read tlll Mar 

43 1 wren they went out or me. 

TM9...!!d the moo (! le~_c,i)iiest were read at OKM :in (?) Fq Group,; 

they \7ere lmown as Invasion Cales Ln.NDJIGS CCDE) • 

ps Na.:!Z, J.Jt.-1-!l!Jie:r;: _c~l!. :{1.QU&._._fil1!. ~..m ..JdlD were in oper:-at10n after 

6 Jrm li4 anl occasiomlly read at OKM, perhaps by Fq Group. 

II• J2.!ia-.-'-J s-..;;of-. LO.XO am COFOX Cal es. 

The LO!Q. ms worked upon at KP .l.bt F.l:i...NDERN at BRUGES ani also at the 

OKM: ll1 i:he Fq GroU.P wmre traffic f.ran etas other tmn 31 SOU2HEID was a.va:i.Jab~.e. 

Werk m the Fq Group was um.er tb:I direction of Dr. THOMt~ (see pam. 10 P.EBSON:~LI'IIES 

in f'eport;). Results of cryptograpbio work a.t BRUGES were sent to the OEM m BERLDi 

fer eva.l'lBtion !!E:_ canple~ion. No captured tables or docs referring to LOXO were 

available, buj; it was brokBn sucoessfully and. reaa. a.1.1 the t:ime. The sys·'em or 

the tables - Pi viras not sure which - oha.nged m Oot/Mov 441 but tra.ff 10 continued 

to be read. The LOX.0 was used for enoallllg traffic dealing with eP-tes oontrol in 

the ~.m:B l!Btuary °b'"J ST1" 31 at SOUTHEND, also by GRn!SBY and. :i;atrol vessels• The 

Germans frutd out that thecJ couJd alwaya break into the SOU'lHEND traffJ.o a.rd f!Ne-::y 

effort '11'.ras :ca.de to take it. station 31 be~ j~r weak, when :MP .1~bt FL..i.NilERli 

moved fran. BRUGES to BRUSSEIB m Jan 44- they set up a "d:irectianal anten."18.11 (eir.e 

RICHT..-.i.NTENNE) at 1000 m length trallled on the e»lct bear:mg of SCXJT".rlEND. Thr 

code lll.B s igm lled in 3 letters,; l.llC'.J.pled among those used were: F, H,, J, IC,,. lt. :rr, 

Q, s, T, U, X, z. The Code \Wl.B reoiph.ered, the recipher chang~ daJ.4.r. 

The OOFOX was on the same lll'les as the system outlined above. However, 

it was not used so frequently. It es also read at BRUGES. Tl:e Code •s operated 

by the same tY,PB of shJ.IE a :rd pc-rbaps on inter-convoy tze.ffJO. 
_ ........ -

' REF ID:A65385 

-2;- • !eOP BiSRE 

CSDIC/OMF/I 37 

8. U-BG-.T D.£:...mmvmE (see also pa.ra 3 C.II a. a.Id 1.pperdix "E" at :report)• 

Ore of the task.S of MP .t:i.bt F!bliDERN at BRUGES was t.be t:r:amq am equipping 

ot Intercept a?ld BF ope xa tors for the Ge man submarine serr,:lae. Opera tors vere 

required to speak Ez]glish well am reach a good standard lJ1 Rl' mterception atd DF 

operation. PW sated that he knew ot six operators who md sailed on baa.rd U-bm.ts1 

but could alJ,y recall the mme ot ore, a PO(\JT) (Funk MP.at) GRCES?&"Jm, to ma:i he 

had spoken, a.rD. who ola :imei to have helped m the s:inkJ.IJg at a British Cruiser in 

Mar/ii.tr ~ The Gezman Ne.vy Intercept Serv10e had deolded. - after li3 .. 1D attempt 

to place convoy escorts am met~ points at sea bj: mans ot Rr mt;eroept and D.F 

methcXl.s on baud U-boats. PW' stated tmt until en:i ... pr 43 oode brea.kinexm.Jm oould 

be given to U-boo.ts. -t~fter en3. .:~ir 43, wren cryptopr.re.phic results were still obtained, 

but with greater dl.ff'10ulty, it \18.S decld.ed to utilize these f'CC' strategic pw:poses 

mlllly and rely - l.f possible - on U-boat DP for locat:ing targets. 

The operator sailed as pi.rt of the crew and was eqw.p:ped. with a T~ 

EP'2 special DF set (SPEZLaLPEILER) • (For details of XP'2 azd pla.rmed new eqU:Lp:nent, 

see .. ~ppenhx "E" of report) • "I/hen tre U-bai. t surfaced - desirable at t mes 'Rhen 

convoJ am escorts \Vere an the n:ir - the opera.tor would listen in a:nl eet the bearf,ng. 

The reading had to be reported to the Captain at once. PW tblnks that ane bearing 

'R'a.S ocnsldered su:N"icient 1x> give rough location of escorts ard/or convoy because: 

(i) J:f' heam on the air ships could be o.t a mx:imumAistance of 100 miles (RT range), 

(l.l.) 1ill.ied convoys stretolEd over same dl.Sta:nce ... between lead.mg a.ni last ship -

atd (iii) what '\\'SS rea~ wanted m:i.s the bearJ.IJg for sett:i.ng a course in that direction. Pi1 hmever confessed tlnt possib]¥ the Genmns OV"ers:implif:i.ed the problem. 

am overloc:-:ed. surh factors as a ccnvoy clBI£JJJg its oourse after :nettl.Il1; oalls, or 

tra:f'fJ.C being p:i.ssed at a t:une v.hen a U-bmt dared not sur.r,aoe. .Asked if DF was 

eyer attempted f'ran more than cne U-bca:b am results oarmnm10ated by VI! to get a 

11 0".lt", RI replJBd he dld not thlllk so, as "NO U-boa.t wru.Jd dare to sl.gml with 

e~r ships arouni 11 • 

O:perators were instructed to J :!.Sten-in to netting calls on the f'reque:ncy 

2410 Kc:i (wavelength 12415 m). (See also !t.ppeniix 11 0 11 :i;ars C.), 

9. WORK .. ~T "B'' GRUPPEN NEIDTI .!.ND ~ REMO. (N 'V'toiked ll1 these units as a "r11' mecha.m.o _,, - ~- · from Deo 44) 

Vfork :.in the "B" Gruppen consisted in watchJ.?Jg traffic lJ1 \"'Y'T and Rr, an:i 

suc!l cede a.rd cipher work as was dare ~s o&ITied out with the ~p of :uaterJ.BJ. 

pmv:uied by OKM cc an MEHS (in the oase of' NERVI am &.N REMO bY MmS K.1.RERSEE). 

''B" Grupp1:9 lUV'I vra.tob...~ tre "Speedboats - freq,uency' (SCHNErL -BomSWELLE) 

of' 2150 kcs. mP,lS frequency was watched both :f'ran the latd sta {at th3 grou.p) ard 

fra:n. on bmm Ital:usn am Gema.n Navy Units suling in the LIGURI • ..N SEl. e.g. (?) 

Italian T34s (destroyers ar torpedo bmts), L...NOL. ba.rqms :f'or amn tpt. Two 

operators (one for \,'T and am for ~) sall.ed on ft.i! ... ship or convoy and reported 

to Captain i/c ship(s) any ccntents r;jf messages intercepted from :.llied ships tJ!',1:1.ng 

to attack them. Traf'f'J.O taken at liBRVI b;y op1:9rators stationei on Jani vas sent to 

KEHS K...RERSFE. ti 

"B'' Gru.ppe S..N' R!:1IO mtcbec most]¥ Rr traf'f'J.O originateli b3' \.ho 'ti'rench. 

The frequemy of French patrol boat t:re:f'f'io was 2716 lms am. tre.i'fic was lJ1 a c...°'e 

made up of cover mms {on 'Z.'..RNT..,~FEL ll.l¥3s) with :names of col.ours far clear figures. 

The mxle changed at the end. of !Jar li-5. Hf stated thl.t t:ra.ttl.C was part~ read, 

JIB inJ,y be ca use tre Fre:nch ue re so carelesR • 

JO. HlRSONAL.1TIE3. 

(Ranks are given in Ge.zraen with EnglJ.Sh equivalents in b:r:ackets, where applicable.) 

Kpt-zu~See (Captain) BON.~TZ Head or Chef :MND IlI (later 4 an In) till beg 

Dec 43. Rumoured to have been replaced by 

KUP.mR below because he f'ailedi to mo.kB arrangements for seouriv at docs eto wh:Loh were 

all destroyed in a banbing raid on night or 

22723 Nov 43. 
• REF ID:A6538 • 

• 

Ka.pita.en (camr) BUDDE 

Oberregierungsrat Dr HLJD 

FuJJk lBa t (P0(1T)) GROSSltUJm 

Kpt--zur-See (captain) KOPF.ER 

Faehnrioh (Cadet) later Leutmnt 

(Bub-Lieut) LUSEBRINK 

Reg~ruDgsrat Dr SCHEUEBLE 

.. ~sre.t S<lflli...BE 

Leut:nant (Sub-Lieut) 

Dr S~"UM ,, .. rn:lm 

, 

.t.d.m.:iral ( .. .dml) STUMMEL 

Regierungsrat Dr 'l'HCK. 

o.s.n.I.c., 

C.M.F. 

.3 Ju1. t 4-.5 

-22- TOP~ 

CSDIC/CJ.iFLf. Jl 

1/c Evaluation (Chef der .u.NS\'1ERI'UID) in 

Chet Ul'ID III• JA.tor J., S1'L III. "::ls 1bez.u 

nt bbz i.4. 

Head ot Genemlreteat ? dea.llllg with US 

Navy tratt10. 

U-Boat DF ope:mtar;o. 

Replaced BC'.fil .. TZ above at beg Deo l.J as head 

Of Chef ll!liD m (later 4 SXL III) .. 

I/c watch (\1.~CH:L.JnTER) in Fu Reforat (MDENCHEN BRAU?l} am dM good work on .t .. wol.iary 

Vessels Code (FRmOWN traffic) • 

Took over Jm Referat -wmn famed, in Deo 1.,3, 

by amal.gama.tion at BrTErIN, ltJ4BURG1 am 

BREMEN Seas. 

Worked under Generalre.fera t "F" on Sffi!:D1Si 

Na.val traffio in Jul !tlf.• An ex ilT operator, 

O.R •• 

Head {Referatsleiter) at Fu Refere.t (nu.NKFmlT). 

Till l l.Tay 44 n".djutant" to STUMMEL. Should 

know of .. ,sdio defence n:easures planned by 

Chef MND J:V (later 4 SRL r:v). as lived m 

the .... RGEmINE, spealm Spanish • 

Head c£ Chef ?r.tJD (I-IV) in 43 - Miiy 44• 

Interested hlmsel.f mi:nl3" JJl l.1.sd.10 defeme. 

Head of Fq Group, dealJ.Jt>; na.~ mth LOXO. 

Ex MP .:..b't1-!'L1.I~ (BRUGES) • 

Head at Generalreferat "F'' (Gt.BIUT.ln~ &: 

RUSSJJ.i.). Peaoe t:ime cr,yptogre.plsr, perbai:s 

e:xi-MEHS U..NGENhRGEN (!Alm ocm'L~NCE) • 

. Jf11l-c.~:1,;f.l .' { <:, •• f .; (W. S. '\tuaf.l.'.INE) , 

Lt-ooJ. I 

Cmdt. OSDIC., ma. 
,. 

REJ!12Jtn: A65385 

~:ns:u: II Al~ 

PilllJ.'".i!rRN OF GEH11AN N"AVY I~ "'llT FCJRM. 

(FUNits:PRWII BLOOK ~0Rl1ULAR). 

-----·----· --- -;---- --

I

Intereopt Sta 

B-S'l'ELLE: 

;-- (~~,-N~. I BEREICH: .L--- ---

Pre or.Ible 

FUSPi.tW!I KOPF 

-------a, 

Spaoe used for Regi.stration eto. 

, lJJD.te: 

l~llt.l: 

:t.11cto~ , ___ ..__,_.L-______ _ 

jFrequsnoy: 

1FREQUENZ: ·----- 1 ~imQ 6t Ta.ld.ng. 

I A.lJn. WRZEIT: I 

(1i11"UD: 

(VON 

!oc 

AN: 

I ~ 

. . 

No. of GROUPS TOO , 

m•: GRUPPEN m... TTtm'7~GR'TDDCt· •• 

P~~uN1 _G_: in as~_e_s_. -----..:----------- _______ w_~~--J;--,u.i;--~.1:1--, ---- , ~, • ~ ~ ·- ._U" .. ""'! .. ~c--... "r' ,,. J 

11 25000 16 '" ........ 1 

I __ J_ 1 

I I 1 I 2 1 'J1 

~ 3 - 903600 1503 1--------·--- i 

: 25 1 ... 00U--~ SI l 

I . --------t------ -- -I -- - ----- - --

)J 

~1 '. 

1 

I 1, I ! 

1-- -__________ ..._ _______ ----+------------ It~---;-_-_, __ _L_ ____ ------~ -- - --- ... ~ I 

' ' 

I 

'"' ~°'"l, .I I '"' 

.. 

,, , ,, 

~", .. ; > • • \ I ~ ... r ' ~. I, 

, .J ,•\ I J 

I~ 1E~- ------

,. ~. I \ I 

I I 

r 

. -' 

------------

' 

. ' 

JO 

•, 

I _______ ___l._-a _____ _ 

•' 
.__ 

I 

I 

Intercept Sta. 

B-STELLE: 

~~----------......... _ • • REEf.:iiJ:D: A65385 

~pendix . . "J. I.!. 

P.tl..!!."'TERN CI!' GEHlrAN :L-\V'f II~E?r 

LOG BOOK rCUIM. 

( "B" Sl'jj!fJ.Ij\\f T..\CJERTTQH FORWUAI\) 

Zona: Ope:i:a'l.t')r. Date: 

BER.EICH: Ha::::mER: 

fil¥'_ .E¥ll?Pi 

Q§DIC/~~m_JZ. 

No: 

---=--=========.::::..==::::-::=:;::_:-::.-_--..:-=---=-===-... ------ -----=------------------

' 

Fraa. To. I F.requerxtr Contents end Remarks 

I Kos 1 1 

I "'/ELLE I I I UJ.Jl~T· KHz i V0..1'1' AN INHALT UNO BEbm:RKUN~i: I 

l ----- ---·--+-1 ------"---------------~ 

I 

\ 

I 

I 

I ·--------- -
• REF ID:A65385 • 

-25" T~~ 

p.§DIC/CMF/Y 31 

'JZi!Dlix non (Cf plra 3.c.II. at report) 

DmJ ... JIB OF 'WT m.s COIERED BY 'l!HE GEBJ&.N lLllY OOj§lQE SERVICE. a.u.. smNS 

&"Ff@QUENCIEs lrl.ElGISED BY PH. 

~. J'.tA~~ BY GERM.iN Ji{!!LMERCEPr. SERVICE ll~Jk_ 

UNITED KOGD<X: U&" & Dl!.lPENDENCIES: 

WHITFlUJ:.L Ja.NN.~ 

FJLEmHWPE :MI.W4I 

SCl.P.b HQNQ[,ULU RCSYTH SUHm BlJ.iBQ.. ... ULTBEt ... ccno SOLO 

GRIMSBY GUAN!' ... N...MO 

GR&t.T Y.bm.IOUTH KO~K 

SHEERNF.SS SIT~ sourHEND 

DOIER B.t.t.SES JN OCDUPIED TERRIT CBIES INCL. BRIGHTLIICS!b IlIDIGENOUS STd.S. Rlt.lB~.TE 

NCllTH JroR.EJ:...ND RADIO BEIRtJ:r 

PORT B: .. TRICX Rt..DIO .. i.LGIERS 

:eom'SMOU'.IH BISERTJ.. 

DE\TONPORT TUNIS 

PLYMOUTH R.LB&-aT 

F .. J:Mamr ~~s..BLra.NQ;... 

HO!iIHEm PORT LYAUTEI 

LIVlllPOOL DIEGO stWmZ (Ma.dagasoar) GRBNOOK '"'ZORES LONDONDERRY B.1.STL. 

I?QIKEITH P.HLERMO 

llt...Y ISLi ... H> NlaP!ES 

LmHORN 

BRI'.CISI EMPIRE: Kt.Jlsm.r;Ji5 

NICF/V~JroHE H.LJ.JFJ.Jt. Cnl\NES ST. JCHNS CHERBOURG 

V.nNCOUVER LE HfaVRE 

SUVb (Fiji) :MCJRLl,IX 

F .. a.LKLa;i.ND I~NDS BENNES 

TRINCOlvfkaLEE (Ceylon) :e .. RIS C..LCUT~ .:.NT11ERP 

BCJ4B&..Y BRUSSEtS 

.a.DEN BRUGES 

.nLELJmRL ... REYKJl.i.VIK 

:&.SR.4 GREEN H.. .. RBOUR (Spitzbergen) NICOSL. (Cyprus) G.'.J&.TP..Ql ( Greenlard) GIBRl~ .. t.R 

RmELL.a. (llalta) RUSSL.i.: 

FREl!ll!O\VN 

ST. HELENla. 14URlGNSK 

'LLv.rB BAY 1.RCHl.NGl!L 

SDIOR3TCJWN 

D..RES&aL.Jl mt'~: 

SLt.NG KOP pt. 

T .. .JtO.R.~ RIO DE Jl..NEIRO 

ESQUIM.JJr RIDI:m Pl!RNAMBOOO 

li\tJ1IL;... 

BEWONN.l!N 

FLiliDERS Isld. 

ID·ImIN! 

, 
--------------------~------ - - -

REF .. 21J:) :A653Bse • WQ9 9iBBBf 

r;JPIOLCJll Ii 21 

~mix "011 oont. 

B. a.I.ta smNs. 

I. Nll.V .. ~ GENERA~ C..LL SIGNS. 

LIVERPOOL al:IP 

&LIFJ 

~~s 

mn.nar/&LB~ 

LCaLOUA UUJ1iCNOLULU 

6i11llDOOliG 

&RIB 

II. x~v_,L ~SES .&..ND ~t1.IH~ITIES, 

~ S!I:ES GRDtSBY ARm'.. 

19lt3A4 

SIIPS ~H> .ol7.111CRITIF.s 

m ~ P3 F.BEl!lrOWN 

III. USED BI 1 7 

l~ 

~ com Nt.MES: 

(RUFN..MEN) 

II 

II 

O&U£ SIGNSi 

ft RI! - - GIL 

GIE 

GIB 

JOO 

lE!:a. BUU. TANNER/SOd:PA 

mu DOTER 

lll.D JltJ) 

&.BBLE, S!LEX1 ~.LEX, 

LIEEP:.G 

ISlw..C 

KOS&S 

lflN 

BULL &.F.f!1.rY/SHEERNESS 

311 JG, 1+7 I lt8 

VPU 

VHP 

G!X 

CPH 

NtJ. 

NBi. 

:NPM: 

NJ'S NJ'S 

K1I NJI 

FUM WM 

Km KID 

• 3 PIO 

• 3 PEU 

:figure - Jstter - figure 

6 - letter - letter - letter 

7 - letter - letter • letter 
• 

1943/44 f (~~== 

REF ID:A65385 • 

-'Z]-. 

.u.ppe!fi?5 11011 cant. 

:fran .. J3 to .:..z 

CSDIC(CMF/Y 37 

v. _mEB....IiLIED OODE x~ms (IN.rEB.JJ·IERrE RnU,Mp) : 

1943/411- letter - figure - letter - f :i.gure - letter. 

2 - letter - letter - letter. 

VII.DEt.IVERr GROUES (VERrEILER C2JPP.iti) : 

UD • = ala o intenied for. 

J.9J+3/liJi. QG := JBSS to• 

HJ = ~· (.wlmlralty) 

vm. DEtirn - .. ...tlDRESES (VERTEILER .. .DRESSEN) : 

19!,J/lfll. Letter - letter - letter. 

o. ll..VEC.EIGTHS .l~ FREQ~IES - {J.9lt.3:9-.2) ... t. 

(No:rE: PW quoted either ?m.velengtbs in m. am/or :f.requenc:ies in lil)s. These 

have be en converted into Kos and are shown in col. 3 .) 

1 2 

"ilA VELENGTH nmQ. 

m MO 

35 a.2 

a.4 a.5 

93 

'Tl 

ll.O 

2.5 

2.15 

3 

FREQ. 

Kos 

8200 

Bli-00 ' 

8500 I 

3225.a > 

3092.a > 

'ZlOO 

'Zllb 

2654.9 

2500 ) 

24-51.8) 

2410 

2450 

2150 

2040 

USED by STkS 1~ Ill ZONES: 

N.FRuNCE, after the invasion. 

~~s: NJS & NJI :in N. FR....NOE. 

Fmi-M~RSEILim. 

DW .... SION .. Jm~ (N.FR..NOE) • 

010 PORrSMOOTH, PLlllOtmI. 

CONVOY ESOCRT FREQ ( GELEITZUGSWEIUl) • 

P....TROT.S s. F&JCE ca. sr- (BREON, Pl 

& Pl). 

UNKNav.N (~, NORTON,. CRQ3SWISE) • 

fl1~, INml\EITH1 M/'1' ISLAND (l!OOCB) • 

LIVEHPOQ[, Jrl'.,D to ''&Jmr.E" 

( C iC WESTERN .:~P.EROt .. CHl!B) • 

SHZDBO.i.TS m MEDI'.l!~.NJUJI ( Gult r£ 

GE?O~) • 
1 2 

'W.:i VELENGIJH FREQ. 

m K} 

2.068 

lJiS.14-

l(,8.5 1.78 

J70 I 

I 

I 

I 172 I 176 

t 188 

'5 

FREQ. 

Kos 

2068 

1995.5 

1780 

1765 

1744·5 

1704.6 

1638.4 

REF ID:A65385 

-28-

.. ~;gpemu 110 11 oont • 

la. 

USED by S'l!l.S AND m 

-

r:e OP Sl!EBJ!m 

OSDIC/CMF/Y 37 

SONES: 

SOOmEND Jl to m'JCES Contral shii:c. 

EHEERNESS. 

0:10 NCID:, GRlHSEfi, GRFJ.T Li.tUOtFH, NORTH 

FC!UL.JID, POElr P .. i.TRICK Rl...DIO. 

OOVER. 

~ .t.l ternat:Lve t'reqμem:tes (.t.USWEICHWEI.iLl!N) 
• 

\ 

REF ID:A65385 

-29- • 

la.ppe:r:dix 11D11 

(of i:are. 6.0.III.W. iv of repart) 

ih ~e-1ptio'l of RCLD1t.sqn1m. (FIG 1 on .~ppem:bc) 

!l'.'6.P BE9REB! 

CSDIC(OMF /Y ,7 

PW ccm:.:ared it to an aba.ous am gave the f'ollavi:ng details at its construction 

and hl.l'ldllllg. Tm mohine JS oanposed at a meta.!.-sheet outer oas:f.n.g of .,in.ch 

the top side JS illustrated in FIG 1. (area a b c d). Tha top s:lde of tha 

m9.chll'le has a. cover whJ.Cb. oan be opened (area e f g h) and part ot whJ.ch (a.reo. 

e r i j) Js covered vrith ~ss alloRJ.?8 opexator to see tm f:h-st "rollers" 

on ea.ch a! the :fair axles (axles Wl.th rollers :imrked k 1 m n). The remain: ng 

part of the top cOll"er (e r g h) i.e. area. i j g h, has four open cha.nmls 

tbroueh v.hich opemtor oan see the roll.em turn. On tbs "w:urlcn111 (a.rea e r i 

j) rm the left ha.ni s:Kle ot cover (a e o g) strips are provJded an \which tie 

sub ~motor group "Set on too ma.chJ.ne' s top rollers ard the coie grOl.qJS, ca.n be 

m'lr!.ood before opemtmg. The four axles (k 1 m n) l:nve usual~ 10 (sa:etJE..es 

15) 'rollers" mou.'1.ted on them. The mch1ne lS bw.lt in smh mnner t..11.t'\t when 

1 

"lhe top cover ( e f g h) :is opened the "rollerG" can move lniepm:lenti;Y on the 

c.;;~s on ·ilJ.Ch they are mounted. 'When the top cover is closed, the axles can 

be m:>\red. n:d all "rollers" an ihe one axle move with the axle, but not J.niepeme'l'ltly. The axles are not coupled, they have to be moved llli1vldU£1.Jly. J.. 

sttp»ort is prov:ided WJ. th the :machine llllo.r:i.pg operators to place it on their 

C.es1m at Jn angle of approx 450 f'ran the horizo:i.tal. 

:!h ~~R$ lers'1 (9ross-seotion ::.llUEtmted m FJ.B 2 of 1 ... ppe:nd.J.X)~ 

~itl ''Rollers" o.re made of' '1ood. or metal, diameter approx l inch and a.re JIJJ.tked 

.:'ro;i 0 to 9 l."1 an o.nticlook...,71Se d:irection. ilhen the mo.chl.DB is opemted tlw 

c.~~cs on W~l.('h too 11 rolle.£'s 11 a.re mounted. are turr..ed lll a clock--'itise d:irection 

so 'uho.t l f'ollo."s o, 2 tallows 1 eta .. 

Co ~12E:ll!.1,br {! .. ttim ~ re~l.110. Suppa5e tm graips (high freqlErcy iltnorm 

cede erc ..... p;j 9ul0, 28~0, 528 eta he.v<" to be put through the mchim. They 

a 'l'.'e 'v.r J. t'!:on cut on tJ:ie strip at tlE s ll e of' the ma.chine ( a:rea a. e c g) s t.lrtlllg 

;t"r0t1 o. lire oorrespo:dU>g w.i. th the secom r0\7 at ":rollers". The tap cover of 

the mch.J.na J.s opened, a.llovrllle "rollers" to move inlepenl.entq on their axles 

i:mi tm "rollers" a.re set at: (see FJ.g l) 

0000 on the top rarr 

1067 11 11 2nd " ~ 1067 1 8280 anl 4582 eta being 1he groups 

U280 " 11 3rd 11 of oomplements of d:ig its (do.a srIIDEtJ3ILD) 

li-.)82 " '

1 4th " which make up the cede groups. 

etc 

:n~ grwp OOCO :i.q the basic settq (G:aUNDEINSTnLLUNG) far tm sub .. :!'D.cto::-

tI'"1 ::i..ts c.ni m a!-r..ys ta?-e:i. .. a.rbitra.ril.3' - for the sa.ke of convenience. FiT 

st~tei on'3 co.ild. se~;; fr..c.. n:achme at 1111 (on the top ro.v of "rollers) or c.:qy 

:f'l.guresl bu'~ one wouJ.i ho.ve to 00.rr.1 on comp].etilJg the cycle in miy ca.se (see 

D belcwJ c. 

:LJ$ 2.e!l."'.!'~' - "dr.i.J& Whsn the :mo.ch:ine JS set, all reg::i'3tered conf'ir.med s•.Jb--

't.1.·a.ctor ~J.IB [f'ouni :in the rocanstrilcted recipher bode - WURMBroEN) nre -'11•w,,.cd 

on t.m top ra;r r:£ "roller3 1

, in turn, artl tl"E resulting "a.rtitfoial .rnD.rc~1ig:ro.m. 

grou~" a.re can]:&l.rsd. \'Tith the catalogue of intercei;:ted ma.roon:igmm groups. If' 

E>:.J "o.rb.f10ml11 g:ro'l...J?S. are fouril. to exJ.St in the catalogue oni m the two mesc;o.~es these ore :mDd.e into a pair ("SERIE"). In FIG 1 canplement digits of 

cc.iu grC\..J;S oro set with assw.:3d subtro.ctor 0000. In FIG 3 co:of'l.rJ'lled stiotro.ctor 

.l.21jl bo.s been set by "roll~" and ''nrtlf':l.c:i.r.J!' groi.J.;[8 22JA., 9437 c.rii 57!9 

o;it!l.11i.ed. 

En ?7 stl'ted tmt this kJ.ni of w<rk could m do:ce by ro.m els o, but tha.t it would 

to..'lte muc~ lOlli,~er. Therefore, us tead of to.k~ frequent code p,roups 904-3 2820 

6528 ·· SUS!lSotad. to 'be o.t the bl.sis of soue mo.rc:onigrom ~:ro .. 1P5 in traffic ... 

0.11'1 t.L7.J.l7,,o; iX> _s_μ":J~"Ff.-?! than froM cJ.l conf:irced.1 reP;lStered. subtract~ ur0t.1ps 
• REF ID: A65385 • ...30- ' 

"'loppemix 11D11 cont. 

known to the c~·p"IX>gra.J;ilers, smh c.s: 

subtmctor group (W) 

ca:le group (c) 

:m.rccm:leram group (F) 

1257 

~ 

2234 

1257 

2820 

~i 

1257 

~ 

5739 

IJ?~ iiI!RE 

CSDIC/Clfi1/! 3] 

eto 

the caanplsment vo.lms at oode group digits a.re set on tie "rollers", o.ssum:i.ng 

ttJo. t an the top row oode group 0000 JS set o.s o. sto.rt:iz>g l>O:i.nt, o.n:l subtmotor 

1257 for lllBta.me, o.:ni o1bers, are added: E.g. 

subtmctor ~p (W) : 12.5'1 

caie group o) l 0000 

mi roon.igrom group (F) : ~ 

subtra.otar groups (W): 1257 1257 1257 

code gro~s (C): 

~ 8280 

mo. rcon:igmm groups (F) 9437 31N; 

Tm mdlim has tm advo.nto.ge of a.llowmg seve:ml cede groups to be treo.ted o.t 

Ul.e so.me t:une. 

F. "RolliJJg11 is done sepo.mtel;y for red. subtro.otcrs o.pplJBd to addresses ... ccnegrou,ps o.nl g:teen subtructors applied to text-cale-group1 • 
c 

-- 1 2 5 

1 2. 2 1 

9 4 ~ 3 

7 3 

• 

7 

4 

7 

LJ I I 

I 

I 

) J'...!L. 

l 11 ~ficial maroonigram 

groups" (KUENSTLICHE l -=nePEN). 
_,. .. '"_o:::_-.;._:::-______,.. .- ~ -- ------------:-------------------

• 

U - Boot SpezlAlP!ller : 

REF ID:A65385 

-32 .. • CSDIC/Clm'f¥' 37 

.L.RJ>!ni~' (of pi.re. 8 at report) 

A.ls U-Boot SIJe z:m.lpell.er wurde zunaechst der von Telef'unlmn gebaute 11EB 2" mit 

Peilmhmen uni Hilfsantemie benutzt. D_!.r EP 2 ist em gewoehnl1.0ler JrRoehren 

UeberlageruJ'Esempfaeneer tuer Batter:iebetrieb :f'uer Grenz uni Langwell.en. Die 

Deutschen beabs1.0htigten SJS.eter e:inen von NVK (KaCHRICJITEN VERSUmS KOMM.JIDO) 

&ntwiakelten 11SIQITPEJLER11 zu benutzen. Der Sichtpeiler nacht die Peiliq au:f 

emem BRAUNSOHl!N RClm sichtbar, so dass man ohm Ueberlage:run,g peilen kann. tas 

bedeutet da.ss man bei der Pell.mg von Fonie-Verkehr diesen Verkebr gle1.0hze1t ig 

abnehmen mnn. 

GROSSMANN b-'lt :mch seiner ei;:enen idJ.lldermJg bei seinem U-Boots Einso.tz Fon:iaVerkehr .zwischen mrei britiscben El.llheiten festgestellt uni dJBse eingepell.t. 1.:uf 

die Pell:ur.g hJ.n soll der l..?.Br:itt a.u:f einen britl.9ohen Kreuzer gef'a.hren warden ea.in. 

Durch Ueberwnch~ des Fon:ie-Verkehrs mch dem Unglueok uni wnehrerd der Rettlmgsaktion wiJJ. er die Verse:nkung des Kreuzers testgestellt haben. 

~TIW: 

.at first tm TECiE:DUNKl!N EP2 - wi1h Dr f'I9.Im ard auxiliary e.er:i.a.l - was used as a 

U-bmt siso::ial DF set. The EP2 is an ozdim:ey touz...valve-heteraiyne receiver, 

wo:dc:ing on batter:ies, tar medium am J.oq; wave banis (? 100 - ? 2000 m). The 

Ge:mn.ns llXlieDied to use la.tar on &'Tvision" DF set ("SICHTPEILER) developed by 

the Gemi.an Navy S.Jgs ExperJJnental Ccmmami (Nadlrichten Versuohs Karm:amo = NVK) • 

The 11 vlSion11 DF set permits the opemtor to get tm beam on a cathode re.y tube 

(BR. ... UNSCHE ll>HR), so that DFjng is poss:il>le without a supermposed '18.ve. This 

c.ea.m that when DFing Rr tra.t'tio1 the latter oan be talen down siI.iulta:neouSJ.y. 

uocardl.ng to his am. de son pt; ion wh::i.JB sailmg cm board an U-boat, GROSl!&i.N'N 

mte rcepted ani lll'ad Rr trattio between two British Naval um ta. .:.8 e. result of 

DFmg an attacic was JJBde on a British Cruiser. He stated that he oonf:irmed the 

sinking as a result ot l:isten:LJ'E in 1:D Rr tratf:iD after the oatastropl\v ard durlllg 

the salvaging operation. 
• REF ID:A65385 • 

msmIBUTION 

AD ot S G-2• AF.HQ •••·•~··•••••••••••• 

(J)IS, MED•••••••••••••••••••••••••••• 

QI() ijQ KAA.11 •••••••••••••••••••••••••• 

G-2 (Sigf •tr) Ll.t-""'f!Q •••••••••••••••••• a.I.s ••••••••••••••••••• : •••••••••••• 

G-2 (P/W) .A!HQ ••••••••••••••••••••••• 

GSI ( B). 15 A:rlrq Grou.p •••••••• '• •••••• 

llI a. ~ Otf'iee •••••••••••••••••••••• 

III 19, war Oftioe ·•••••••••••••••••••• 

File ••••••••••••••••••••••••••••••••• 

JPP §!SR.!! 

CSDIC/CJ4'.Ftf.: 

CH No. 

1 

2-3 

'+- 5 

6 - 8 

9 

10 

11 

12 - 14 

15 

16 - 18