REF ID:A522534 

Classification 14 Sept 53 

FRCJh NSA-41, Mr. Austin 

TO: Mr. Friedman 

Received 1 copy or the item listed below: 

Memo for Members of the U.S. Delegation, dtd 11 Sept 53 

Copy No. 16 of TOP S.ECRET CONTROL NO. 5.3-41-183 

Classification 

Declassified and approved for release by NSA on 06-25-2014 pursuantto E.O. 1352a 

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REF ID:A522534 

'T10P SECRET 

11 September 1953 

MEMORANDUM FOR MEMBERS OF THE U.,S. DELEGATION 

SUBJECT: UK/US COMSEC Conference 

Forwarded herewith is a copy of a UK paper reviewing the present 

status or UK cryptographic equipments.. Thia is an advance version 

which has not received final approval and ia subject to amendment 

both before and during the Conference. 

~<2'~ FRANK C. AUSTIN 

iOP see KET ec [q-ll~Ot MU~~HR. ~ . ·Ii 

COPY / t .OF ·: \,~:r1t,::i 

r1AGE Uf· / ·· PAuE:S 

TOP SECRET 
REF ID:A522534 

.. 

-e-

, l' ~:ltUttt~/ -----r 

'feP SEiSm!iT · SB6URl'fY Ilfti'OfiMlt:'flOH 

!!•Ko CRYPTOGRAPHIC §QUIPMENTS 

PART I. LITERAL CYPHER MACHINESo 

1. Machine Requiring no §xterl'J.~l Source of Pawer. 

(a) PORTEX. 

A small hand operated oft-line tape printing cypher machine with 

an electrical permuting maze designed tor low echelon wse. Electrical power 

to operate the maze is derived trom a self-contained 45-volt dry battery 

good tor over 100,000 operations. The c1-yptographic unit consists ot an 

eight 26-point rotor ma.ze with a crossover at the cypher end; the rotors 

step in two foul°""rotor cyclom.etr1c cascades. Ea.ch rotor consists ot an 

insert and a housing; the insert is selected from a set of sixteen and can 

be titted in the housing in any one or the twenty=six possible angular 

positions, the housing is titted with a rotatable alphabet tyre. 

Size of machine: l.3" x CJ!" x 7'" Weight 22 lbs. 

Production State: No orders will be placed until after completion 

ot user trials in September 195.3. Production 

will start eighteen months attar placing ot 

firm order. 

Security State: At 1952 Conference both U.K. and UoSo agreed 

that security afforded was inadequate. Since 

then the crossover has been added and it is 

now the UoK. view that security is adequate 

for the purpose envisaged. 

2. Power Driven Machines. 

(a.) TYPEX 2. 

A power driven keyboard operated tape printing cypher ma.chine 

with a five 26=point rotor reciprocal permuting maze with a pluggable 

reflector. Rotors consist of a housing with a rotatable notch ring and 

alphabet tyre into which can be fitted reversible wired iruserts selected 

rrom a set of fourteen. Onl7 three rotors turn during the encJ7Ption of a 

messa.geo The cryptogram is arranged in groups of five letters, a check 

printer is provideda 

Size and Weight (in transit easel 3' x 2' x 1 9 3" 160 lbso 

Production State: No more of these machines will be manufactured. 

Security State: At 1952 Conference it was agreed that used 

'With Simplex (one=time) rotor arrangements and 

Dl8SS&ge settings the equipment was secure tor 

Top Level NATO coammiaations. 

JOPSFCRFI CQNTRGb Wb!MH~ :.·-.,, ·· ft CO~Y / .# CF .. - r L · ~"':'1'."'ltS~ . ..-._._., _;.,--

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(b) TYPEX 22. 

The general purpose U.K. cypher machine; similar to the Typex 2 

except that all rotors turn during the encryption or a 1n9asage and a 

pluggable crossover ie provided at the entry (and exit) to the mazes. 

Security State: U.K. view is that the machine is secure tor all 

claesificatione of traffic provided bisection 

and variable spacing are employedo There is no 

U.S. assessment. 

(c) PORT.EX IIA. 

A keyboard operated motor driven version of the PORTEX I. 

Operating speed 130 characters per minute. 

Status: 

( d) SI?lGLET. 

One development model constructed. Adoption or the 

machine depends upon pol1c7 tor the adoption ot 

PORTEX I. 

A keyboard opsrated motor driven tape printing cypher ma.chine 

having a ten 36,..,point rotor non=reciprocal permuting maze using reaoentey 

technique with a pluggable crossover at the cypher end. 'nle keyboard vill 

provide tor the encryption of the full combined teleprinter alphabet as 

laid down in ACP 126 plus the punctuation mrks, ccmma., colon, question 

mark, quote mark. In addition, the letters J and Z will be recovered in 

the upper case and facilities will be provided for encrypting carriage return 

and line teed. The cryptogram will consist of letters arranged in groups ot 

five; a check printer will be providad. !nte~peration with AFSAM 7 and 

PENDRAGON will be possible. 

Eetimat~d size and weight: 2; cu.rt. 75 lbs. 

. ( e) PENDRAGON. 

A model to comJ>l.7 with the latest specification (agreed 

in April 1953) due tor demonstration March 1954. 

Major ottice variant or SINGLET. Opera.tea automaticalJ.7 from 

tape input and designed for use with both one""'11re and five=wire teleprinter 

ancillar,y equipments., Will interwork w1 th SINGLET and AFSAM 7. 

Estimated eize and weight: 3 cuott. 100 lbs. 

Status: A model to comply with lateot opecification (agreed in 

April 1953) due tor demomstration June 1954 .. 

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PART II. TELETYPE TELEPIUNTER SECURITY EQUIPMENTS. 

3. Non=-S:xnchronous with Electro-mechanical Cr;rpto-Components. 

(a) MINSTER. 

Interim equipnent for on-line non-e)'l'lchronoue (start-stop) 

point to point usage over wire circuits. Halt-duplex operation. Cryptocomponent is a rotor maze genera ting additive key using six 31-=point double 

rotors. Maze steps at aJ.temate encypherments. 

Estimated Size and Weight: 2' x 2' x 3" 150 lbs. 

Developnent Status: Developnont complete. Placing of contract& 

awaits clarification or ueer requirements. 

Security status: At 1952 Conference U.Ko etated aecurlty 

acceptable tor intended purpose, U.S. required 

further study. 

fNOT.E: Possibility ot re-designing MINSTER Jtith a permuting 

maze and .32 or 36 point rotor is under investigation.J 

4. Non,.S:mchronoys with Electronic C~~Component. 

(1) FHILOMEL (modified ROLL.1CKl. 

Non=synchronous equipment using subtractor (additive) key 

derived from an electronic key generator (single TU'ITE) employing multi= 

cold-cathode tubea. Cypher setting is changed by means or plugs and 

counter settings at the beginning or each da1 and after outage; to nd.n1m:1ze 

the nUD\ber or reset operation& a character counting device is to be titted 

to ~nable operators to regain S)'l'lChronism on the original key cycle following 

temporar)" loss due to line faults and operator errors. This new method of 

resetting replaces the random generator setting. To lindt the dangers of 

insecure radiation the equipnent is being arranged to be capable of use on 

either a d.ca or a tone=lce)'ing basis. '!be equipnent can be remotely con= 

trolled from the teleprinter position. 

Size and Weight: 4' 6" x 19" :x 12" 250 lbs. 

Development Status: Contract for 115 equipnents placed and due 

for completion May 1954· -ni.e firet 50/60 

will. require retrospectiv~ action to incor= 

porate the character counter and tone ... keying 

modifications. 

Security Statue: U.K. view is that the equii:xnent is secure tor 

use over wire circuits on which there is little 

chance or continuous interception or the tranemi t ted signal by potentia~ eneJ!!iY personnel 

and provided the plug and counter settings are 

~~~~d at every ~SEG~O"e6#wMrf;mf~·~--.. -11 · t {_ 

rrop £n€R9*6: 11- OF , ,. corif§ -ro 9£1 Fl§ET ... ___ ..,.f,_·· _of. I'~ PASES 
5. Synchronous Equipnent with .!_illtr0=-~_5W!lllical..Srzpto =Cgmponefil. 

(a) Circμit Mercμry. 

Single channel duplex, oynchronous equiJ:111&nt operating at rates 

or 45 or 50 bauds. Accepts 31 characters (excluding blanks) from remote 

teleprinters. Does not provide traffic flow security. Crypto=eantponent 

consists of two rotor mazes, one with six Jl=point double rotors for 

encypherment and the other with four 31-point double rotors tor motion 

control. Uses relay 5/32 translators. Ueed by the Air Ministry over long= 

distance radio teleprinter circuits. 

Size and Weight: Two 2' x 29 .x 3' consoles and one 6' x 19" rack 

par duplex terminal. Wt. approx. 400 lbs .. 

Status: In uae and in productiono 

Security Status: At 1952 Conference both UoK• and U.S. agreed 

the equipmant wae secure tor traffic or all 

claeaitications. Authorized for passing NATO 

trattico 

(b) e.ppa.ratua 5 UCO Single ChaqnGl N£:...!. 

Single channel duplex synchronous equipment using random one= 

time f'ive unit tape f'or eypbor key. Accepte 31 characters (excluding blank)o 

By using a magnet operatad tape reader, racilitiea for the encryption of all 

32 teleprinter characters can be provided. Designed to give traffic flow 

security but thia facility has recently been found to be inadequate and a 

modification unit is being designed to rectify this deficiency.. Equipment 

is used on long~stance talograph circuits over radio and wire when the 

transmission error rate renders start, 0 atop equip:nsnt unsatisfactory'. 

~: One 6' x 19" double sized rack per duplex terminalo 

~: In use and in production at rate or six equipmante per 

month. Existing orders will be completed early in 1954D 

Security Statue: At 1952 Conference both U.Ko and U.S. agreed that 

the equipment was secure for all claesificationa or 

traffic subject to adsquate checks of the standard 

or the one tinm tape. Released for Ul!le b:y NATO coun~ries subject to adequate safeguards against 

insecure radiationo 

(a) ARTICflOKE .. 

Twin channel duplex synchronous syst.em using subtractor (additive) 

key derived from an electronic key ~nerator (double TUTTE) employing DlUlti= 

coldoc-eathode tubes. Accepts 31 characters (exclyfU11~~~-,ffeL~-\~- ~ "-!/··/ , 

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REF ID:A522534 r:r-.e- -- -- ~T 

start/stop teleprinter ancillaries or 32 characters from tapeo Operat.es at 

50 or 75 bauds• ani provides traffic now security., Basic cypher setting 

ot each key generation achieved by means of 27 chosen from a set ot 80, 

subsidiary setting controlled by a quasi re.mom setting of the counter and 

64 position cyclometer switch which is advanced one position tor each reaete 

Plugs are changed completely a.tter every 64 resets., To be employed on long 

distance radio am wire teleprinter circuits. 

Size: 

Status: 

One 7' x 19" double sidad rack per twin channel duplex 

system.. For vehicle installation the equipment can be 

mounted on one doublePside 51 3" rack and one single aided 

4' gn racko 

Engineering {"A'') model demonstrated in 19520 Service 

trials of mnu.tacturers { nBn) models due tor completion by 

October 1953; production at 6 per nxmth due to start 

JW.,- 19540 

Secur:i.t:rAssessmant: At the 1952 Conference U .. Ko assessed the ... equipment ae secure for combined commmicatiorus; UoSo 

required further stud:yo 

(b) £ony!ttor Noe5o 

Key Tape Eliminator tor uae with Apparatus 5 UCOo Conahts ot an 

electl"'Onic key generator (double TUTTE) similar to that used in ARTICHOKEo 

l'htt setting o! the kq generator is identical to that in ARTICHOKE except 

that the quasi=random setting of the counter is replaced b;y counter setting 

according to key listso Synchronous operation is derived from the Apparatus 

5 uco. traffic now securit;r is providedo SlightJ.T mdif'ied. the equipnent 

can be used independently ae a salt-contained start/stop on-line teleprinter CJPher deviceo 

One single sided 6• rack, but proba'bl.7 with awdliar,y 1mit 

tor start/stopo 

Status: Developunt mod.els due tor completion September 195.30 

Securitz Assessment: U.K. Tiew is that equipnent is secure tor use on 

pointc.to=point circuits tor traffic of all classiticationao 

UoSo require f'urther study. 

7 • Selt=Sznchronising &rd Autocl.avic .Eguipmento 

(a) :WCUBATOR (late CHE.APEX) 

A start/atop cypher text auto ke;y aver/owr Simplex teleprinter 

cypher deviceo The object of the device is to provide the maximum security 

a.t a nrln1rrum cost am to this end the increased error rate inherent in a 

aeJ.t' .. synchronis1ng !J:yStem of this t:n>e is to be investigated - the dela7 line 

tram 'Which the cwher kq is derived is forty alemento longo A trammd.seion 

error ::na7 cause an extended garbleo The garble teature limits the use of the 

equipmmt to good qualit.7 wire and radio circuits.:rep SESR.ET S0NTR9L Nl=l•\BER ;.;. · 11-1 i 

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IOP SESBP::o'! •• ~~SECRET 

Not yet determl.nedo 

Two bree.dboL"-d m:xlels are due tor conzpletion in August 1953, 

mgnetic bimr;r circuits are beil'Jg employed tor the delay 

line and hard valves tor the remainiar ot the equipmnto 

These equipments will be used to det~rm:lne whether the 

garble 1'eature can be accepted in practiceo 

•. Security Status.t The UoK .. consider that with minor moditicationa# 

the equipment as being developed w11l give adequate seCUl"ity 

tor the next .five ,ears tor traffic passed. over low echelon 

networks of claaeitic.a.tions up to and including Top Secreto 

8. ptt-Line F.gui.pmnto 

(a) ROCKEXo 

An off-line teleprinter cyphering equipment using a six unit one 

time key tapeo Accepts .31 characters ani by means ot an el.ectronic stunt 

suppression unit produces an all-letter cr1Ptogram in tive letter groups, ten 

groups to the line and live lima to a paragraph. A new uneneyphered sequential 

:J.micator is used at the beginning of' each paragraph. Operates at either 

Creed or Teletype speedo Se-wire am electronic versions have been produced tor 

UM where there is a danger ot interception ot radiated plain text sign&lso 

Status: In use an:l in production .. 

Securitz Status: At 1952 Conterence UK and US agreed that the 

equipment was secure for tha encyphermsnt ot trattic ot all 

cla.saiticat1ona subject to &dequate aecurity checks during 

the mamitacture ot the one-time key tapeo 

9• iococ:ler Szstemso 

(a) BAYGLEo 

Single channel duplex fixed plant speech security system for uae 

over larxi line or long distance HF radio. Requires one 5 Kc or two 3 Kc 

transmission chanmtlsc Uses a 12 channel vocoder (10 spectrum and 2 i?ldepeb:lent pitch channels each quantized into 9 levels) o Crypt.o-component 

conaista ot 12 iniependent raniom ke;ys furnished on 35 Jllllo tilmo Tube 

complement ~pprox1mateJ¥ 2000. 

Size am Weight: lA bays of eqaii:ment either fixed plant or 3 special 

vehicleso 

status: I.and"line trials carried out 1n U.K. over period March=Ju]Jr 

195.30 Radio tr1als scheduled tor ear]Jr 195k.o Only tour 

equipments to be completed; size, weight am adm1n1strative 

problems preclude general adoption of th1e equii:ant. 

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JGP SB0M'f = §!3Y.ttlll::.mfi'O~ 

Security statws1 At 1952 Conference U.K. am U.S. agreed that 

equipmant is aecure provided ke7 film is subjected to 

adequate checks during manu!actureo 

(b) SORQEm;Ro 

Single channel full duplex speech security equipment tor uae 

over lan:l lines, short and long haul radio circuits. Uses nine channel 

wcoder ( S spectrum am 1 pitch) o Cr.rpto-component will be Convertor Noa 5 SU~ additiw kayo 

st.atua1 Two m:xlels tor dmlX.'nstration on a back-to-back basis, each 

consisting ot tour racks ot aqui:paant are due tor completion 

in Autumn 1953• It i8 hoped that the final model will be 

considerably" smaller. 

Security Assessment: The U.K. new io that the equipment is secure 

tor its intended use. The u.s. require .f'Urt.her study. 

lOo Directl:y Quantised Sz!tea!o 

(a) BLYE BO! Co.70) 

Twelve channel full duplex microwave radio relay speech security 

equipnonto Twent;}'b'.four teleprinter channels l!IB.y' be furnished by time 

Illlltiplexf.ng in lieu ot one telephom cba.nnel. Speech channels are quantised 

to 32 PCM level.so Each channel is sampled 7000 times per secon::l, resulting 

in a total rate ot 420 k:Uobarxlso Employs an electronic key generator (TUTTE)o 

Status: Two repackaged developzrent models ot the ke-,r generator 

due tor completion by' end of 1953· 

Security Stat\\!.: U.K. view is that the equipnent is secure tor its 

intemed uso subject to a review in five years. u.s. 

require .turther stw:ty. 

(b) TRUMfETm• A developmsnt project whose ultinate aim is to provide 

a low echelon airborne or ground puab:o~talk speech secu."'"ity equipnento 

The crypto...component will consist ot & cypher text auW...key device. The 

method o! speech coding is not yet decided. 

Statusz In the earl~ development atageo A firat developmnt model 

of the key generator employing gas tubes due tor completion 

October 19530 

Security statusa U.K. view is that subject to the incorporation of 

certain ni>diticationa in the production model or the key 

generator/# the equipnent vill be a9cura for the encypherment 

ot low echelon traffic tor the mxt five yNno U.S. require 

to atm;r the proposal.. 

7 

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REF ID:A522534 

'@P geRET - §Be!ftFET¥ ~Q.MN s E (j RI£ T 

( c) HALTJl.ARK 110 

Single channel, self-synchronous pusb-tc..>talk speech aecurity 

equipnent. Speech is es.mplcd at 33.3 Keo rate end is quantized by a delta 

m:xlulation achemeo Noise ia injected along with its speech input. .Ehcyphor= 

ant is provided by three autO=J.«v stagcsa in c&scade. The equi}'.ID!mt is 

primaril.y' deeigned tor use OT81' tactical line Of Sight radio circuitao 

Alternative mthoda ot operation are possible. 

(1) Line of sight radio: Push to talk key-er at each termimJ.o 

(2) Special wire lines (4 wire): Full duplex with ditterent keyers 

at each terminal for serd and receive. 

(.3) When additional securit7 is required tor line or radio: 

Full duplex or push to talk with two keTere in series at ea.ch 

tendnal tor each direction or transmissiono 

Size and !(!ight: 

Prociu,etion Statua: 

Securitz Status1 

(d) PICKWICK. 

Delta modulator rot x 16" x 14" 00 lbao 

Each keyar unit 20" x 16" x 14" 107 lbs. 

Prcduction protot)""Pe models due tor completion 

5umDl9r 1953• Production ot sufficient models 

to permit i"ull ecale troop trials due to start 

19540 , 

UoKo consider equi.pmnt giires adequate securit7 

tor point.-"toc=opoint low echelon use. The U.S., 

requires further st'1ld7. When two ke;y generators 

arti used ill series mnch higher securit7 is 

prorldedo 

A single channel duplex cipho:n;y !IJ'Stem for use on special land line au 

Its pr1J!l1l7 !unction is on short distance circuite between special subscribers 

within, say, the I.onion area. Speech input ia Delta pulee code modulated with 

campllng rate or 15,000 per secom. Rf..nar;y cypher k81' is derived from 4 self .... synchronoue HALLMARK II sty'le rings o! length 320 Transmission system will 

probably be 4 lsvel &t 7,500 baudsu 

~: One 6t rack (double sided) 

Prociuction statU§s Two development modelr.1 due for triml. August 19530 

Securit::r Stati;n U .. K. assesmoont incomplete. U .. S., will requira study,, 

PMT ll• FACSIMILE SISTBJSo 

llo MOUNTEBANK {late METFAX1 

A ll)"Bterm tor the enc7J>hered tn.namisaion of bJ.ack and white 

meteol'OlogicLL charts and s1J!Illn.r d&ta.o Transmitted signal when in 11ingle 

chamlel binary !orm is at about 1,000 baudso ~~~OHlllR~~~ard/~ ·'{/-~ 

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tacsimile equipmnt And to mset. a requirament to t~t charts 20" x 16n 

in not more than 30 m.1.nutos with o. definition of 100 l..ioos per incho Ceypt0ecompomnt supplies additive binary key- deriTed from an oloctronic key 

generator (TU'l'TE)o The method ot starting the key genera.tor in step is a 

f'ramo SJ?lchronising syatam simila.r to that used in A&Y S (x ... 3)0 

§ize: 2 racks 6' x 208• (l encyphor, l deqpher) 

IDc§ty: Trials using development models being carried out over radio 

during the pericxl Jul;r to December 19530 

Securil!:r status: U.K., view is that the equipnent is secure ror its 

intended use. UoSo require further stud:y., 

Represents the first etf ort towards utilising electronically 

generated rand.am signal a f'or the production of one-time pads., Source ot 

Iii ,.,.,.:is 1a an electronic nmiomizer airn11 ar to that used in several other 

applications (e.g. 5 UCO ke7 tape). output i8 printed on vi.de carriage 

electrouatic tTP!'wr1ters., Format prograrmdng is controlled by a unit using 

new tJPG rotar)" line .tinder telephone sw.itcheao 

§tat'!!§: One multiple equipnent. operating five imependent outputs 

has been constructedo Method ot bringing it into operational 

use is being sttliies. 

Security Status: UoKo viev is that subject to adequate checks of the 

output the equipmnt is secure for its intendecl purposeo 

130 9n0-Til'f! Tape Prociuct.i~n ftguiJ;ll!!!nta& 

(a) ROCEEX KEY GmERA,TORe 

Fquipmnt for producing mnd<>ml.7 perforated five-level tapeo 

Source ot random input signal is an unstable multi-vibrator requiring critical 

adjustment. A separate oource is prov-".u:lod for each stream of holes in tba 

tapeo Paragraphing is punched into the tape am is accomplished b.r the 

pa.r&graphing uni.to 

§t&_.tus: Eiqttipmmt currently in use am adequate supplies axhto 

No further production contemplat.ed.o 

~gurity status: &lbject to adequate checks of the tape during 

production the equipunt 13 ~onsidered secure by both UoKo 

am UoSo 

9 

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REF ID:A52253~ 

~OP SECRE J_ 

'R9P SB3RBi' = SEeUfiLlI:;;~'fiEgf 

(b) 2_ UCO KE! GmERAl'ORo 

Equipnent for producing randomly perforated .five-level tape 

with eame type of randomizer as used in T.RIMMER. A pulse generator is used 

to tin:a the n.n:lom source tram the repertoraton which are free running with 

clutch locked auto Pertorator operating spead is 400 characters per minute 

{Bl.Dl8 u rate of usage)o . 

status: 200 prod.ucedo No further production contemplatedo 

~curitx Status: SUbject to adequate check8 of the tape during 

production the equipmnt is considered secure b,y both 

U.K. and U.s, 

14• ,S UCO ~pe Checking Fg.U.p111nto 

High Speed Checkero 

Electronic, high speed checker for 100,000 character spools ot random 

tape used in the Apparatus 5 UCO No.,lo Makes the following comta am 

pr'inte cut the re3Ulte:.,. 

(1) Plain stream (5 counts) 

(2) Delta streams {5 counts) 

(.3) ComMnations l an:i 2, 2 and 3, 3 and 4, 4 and 5, l and J, 2 and 4, 

3 arxi 5, 5 ani 1 (eight counts). 

(4) 15 consecutive dots in delta stream (; counts) 

(5) 3 consecutive atrikes in delta characters (1 count) 

StatU!: Throe equipments b.U.lt, fourth in course ot conatru.ctiono 

PART VI. N»l IDFA.So 

l5o I,F.Fo Mko Xo Code Changer fo:r Mode Io 

This is a SU8ll mechanical 26 point naze ot 5 rotoroo It 1e driven 

by a clockwork clock am the drums move at the code changing inteml.o It 

baa not been finally decided whether this will be 5 m1.nlso or 15 minso The 

maze bu a 5 wire output to produce the 5 unit binary codes required. It 

1a used at grom'd radar Io.FoF .. intarrogators and in a:irbome transpomerao 

target size ani wights As szm.ll and light as possibleo In _practice 

it ma)" b1 a cyliD:lar 4"/6" Di&o and about 7"/911 longo 

mssuriscdo wt.. under 10 lbso 

10 l9P SEGRET CONTRBL N~MBER ~--,,..., l/'f ". 

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REF ID:A522534 

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llmlopm1nt Statue: First dtr'ISlopment models should be o.ftilable 

mid 1953. but clock ~ be le.tero 

Sscurit:r status: U.K. consider it er,ptographical.ly adequate tor 

its t\mction. Me.in securit7 issuoa are not crypto= 

graphic and involw h.udc IoFoFo Mko X programme. 

ll 

iol' 5te~n ec11nr.et tttJM~E~.· s · ti t ·,,. 

c0°x • < t o~~ ( CC.hE 

PJ11;t !' . .. 0r· / · i-·,'., .• [S 

TOP SECRET