~;-1611'3?1 

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I lh:_ ~..:. . ·-=-~itrJ: Chief Signal Officer Depart~ent of the Army 

Director of. Intelligence 12 Dec 1947 

Maj Wbi tehead/8129, Ext 216 

ATTN: Operations and Planning Section ~rmy Communic. Service Division 

1. The Arm1 Securit7 Agency ia placing in war reserve stock the quantities 

ot cryptographic devices indicated below: 

SI GABA 

SIGIVI 

SIGAMUG 

SIGCUM 

SIGHUAD 

SIGNIN 

2,000 

4,000 

.175 -+I fJOO .. 

l,~gg } '4 'A"- ~-} 

150 

Plans haTe been made tor the reconditioning of these machines and their packaging 

in Taper proof metal barriers tor long term storege. 

2. }.. 131B2 S/S, as well as various other teletype equipments, is requ'ired. tor 

each cr,-ptographic installation ut1111ing.either SIGCUM or SIGHUAD. No proTision 

tor the storage of SIGTOT (131B2 S/S snd 14~B Transmitter Distributorl has been 

', made, since these equipments are controlled by the Chief Signal Officer. 

~ 

3. Information is requested as to the present availability of 131B2 S/S in 

Class A condition and plans of the Chief Signal otficer concerning the long time 

storage of this equipment for use with SIGCUM and SIGHUAD. 

FOR THE DIRECTOR OF INTELLIGENCE: 

\ 

r 

t

, "; _,,, ' ' J' ) I " • /"' L J 

HAROLD G. HAYES 

Colonel, Signal Corps - Chief, Army Security A_ency 

1'.)~t , ,, .., 

S\GttE.ll ~t'll SE.NT OUl 

GECREl 

Declassified and approved for release by NSA on 06-03-2014 pursuantto E.O. 1352a 
..... , . , 

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REF ID:A71266 

SVBRCT1 lar a .. _... Stooa 

'fO• Cbltt Stpal Of'tleer 

!Jae Peatapa 

lallla.tn&ton 25, De c. 

sea,-

AT!UT!;Jlh OpenU.ona and Plama1nc Seetloa 

~ i:olmlnullaatJ.oaa 3~ce Dlt1eioa 

1. AU'thol'ltf h& be:$D pot.'1fl WJ1 4g!IDC1 to place in W&I" .reael'Ye 

Uu1 qUIUltit.iu or cr1pw~pl'lio dni.:es 1.ridionted belo11& 

JIGA&\ 2000 

3lGIVI 40CO 

3IGAWUG l75 

:3IGCUM 1250 

5IGEUAD 500 

lIGN.ta 150 

Pl.au ha Te be.n nde tor tlla rea~.111 tlocing ,at t.Aeae aa .:b~~• elld their 

packaging 1ll Y&pol'•patOOt ••t.&l b5.rl"1Gl'I tor loag-t. .... ae .1tn>r•1•1e 

2. .A l.)112 3/l, &a •ell as ftl"ioua -otJao:r telatt.Jpa •!l\Upaenu, 1• 

reqalrsd r~r &lat"b. C!7P1r>gl'flph1c ~11t.alla\S.on ut.Ua1ng eitb• SlGCU!i 3r 

SIGSU4D. lo prcrrt.e1on tw -:.ha .ston.1• ot SIG'r:JT {lJl:12 3/3 l\M lJ.AB 

il'anai tt• .DS..'t.l'lb\....,_.} baa beoa ade, .wince tnue aqu.ipilleat.e are ~o.~ 

trol.1.ed ~ ta• t.11id' 31,pal '-f t10&&'. 

). IlltorMtloa 1a J'equu s.ed •• to the ;>l"Ment aaU.bilit..J ot 

lll.12 S/3 :la Clase .l eo:d1 ~1~D :it~ pl.au ;>f ?.he 2!.d Siaaal X!leter 

~ac:erelq the loAg•Ull• •tor•c• or Wa .q\lipae.t tor •• •1th 3~'W 

am SlG!!lt\De 

ra m CBI:W. on s.:Clli\ITY AG!IC1'a 

Ul1LL D. lOlll .. Jor, J1pal Gorpl _ 

k•C1lU:r• Ottio• 
.-

/ INHRBFFIE 9Al.JJ-ll•66 

.DIOR CARRIER SHEEI~HQ A. -

TO 

, ' 

MUST REMAIN WITH ATTACHED PAPERS 

NUMBER EACH MEMO OR REPLY IN LEFT BORDER, PLACE NAME, RANK AND 

TELEPHONE NUMBER BOTTOM OF EACH ACTION DRAW LINE UNDER EACH ACTION 

ENTER FILE CLASSIFICATION ADJUTANT _____ _ 

FROM DATE SUBJECT 

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1 •. It is 'equested 'that Technical Staff be rUr-nis~~d information in regard to 

your pl ns for ong-time storage of rotors, SIGAMUG, SIGIVI, and documents. 

2. CSGAS- 5 is eng ged in the rehabilitation of 2,000 SIGABA, 1,250 SIGCUM, 

, 500 SI AD, an 150 SIGlIN. These items will be packed in moisture-proof barriers ..- _.. iii. such a manne as to b available for use at any time in the future. A companion 

AS-81 AS-82 5 Dec 47 

ated equipment controlled by your Branch is necessary. 

WILLIAM 

w/~ BRANN 

Chief, Technical Starr 

Security Division 

Extension 388 

1. No prov sicm is eing made for lcmg time storage of SIG.AllUG inasmuch 

as ther are n e availa le tor storage and no additional procurement ia 

contam lated. 2000 SIG will be processed by CSGAS-85 and turned ewer 

to CSG -82 to storage 

2. llo p are be g ma.de by this Branch for lont. time storage ot 

doo a suoh as keyli ts, operating and maintenance instructions, eto. 

Such d oision s based the impossibility of incorporating constant 

change in suc dooumen s while paolced and stored. Furthermore, rapid 

produ ion ot uch mat ial in an emergenoy would not entail any great 

dif'ti :ty. 

3. Plans a e unde y tor long time storage ot a large supply of 

SIGABA and SI UM rotor • There are at present, rotors on order in 

quanti ies sut ciant t r use with world wide, theater, and special systems 

which~ be n ded in he eTent of an emergency. Of the 3,190 sets of 

rotors on orde , 2,060 eta have been completed. When completed, these 

rotors will be packed i wooden bozes and no special processing will be 

necess ry tor heir lon :ime storage. j , ~ 

WDGAS 1078 26 Nov 45 47940 

~~Vy ---- WitttAM V. RUSSO 

Chief, Materiel Branch 

Security Divia1on 

Extension 492 

i"=-- - ; ............ ~ ... "R!·-=-r~ 

LIFF H~RE usE-e>ffilikiaE 

PAGE NO _ _,l __ 

RE0'3?RIC'3?ED 
REF ID :,A.7-12~6 I·:;) 

-..; 

.:ti 

/o 

l. A8Ulor1satioa 1:&81 tlMD rece1Te4 to paobge the Eollowinc dnicm tor 

lonc•tera •ton.a•• 

2000 SlCWM., wj51Qffi 

1000 S.tGCR 

250 SICBUAJ) 

lSO StGlfll 

2. 'nle pectaahg and accounting procedure as aet. t'ii.ll'1h below baa b&eu 

approved iv t.he .DirecrWr ot Intelll&ence and will be !olloved in ooNiaetiag th.ta 

loq-ten. atonce ~ 

)e 1lut items ~ be Sto:'tSd. lrill Oe reo:mditloaed e.r.d elft'.lled and pl..ecsd in 

tbe 08ITJ1ng caao or ad'e provided f3r th~ equipment.. .; luorication notice will 

be att.ache:i to tbe dwice in euah a -.r that lt will flQt. be ovC"looked et the 

tae tbe device is anpeCU.ged. 'ho des18D&1ted otf1oen will superlia• the packaging amd be r•ponaihle for the corr~c:tcesa o£ tae iBtl)l"N.tiou at.ccW.ed on the 

raetal tiarr1e:r end tbe shipping box. ii~ t.e& time t-he ca171ng case :>r sate is 

closed over the dertce,. os.ah at the cert.it1ing ottice...ra will tranaCl'ib• the r~­

tor .-w bom the aameplste fro a aeparate cow or Fon CSGaS 1506, 9 'ctober 

1947 {Inclo•ure 1).. Tbue aeparai.it tl'8n.scri.pt1ons 1lill t.her.. be ~red f!>r cccuraq and, it eorrect., the dnic• will be snled 1n the zr.etal borrier. Atter 

th• cover haa h.m atlldar«i ,r1 the b'ltril bnzorier, the s~orl title{s), r-egiHel" 

n•be(s) and ltcbeek t.b1a nmber •it.a uaep.late on awCAl.ne" will be stencllled 

thereon, the data eheeked .. eaob o!'tice.r and the aar.r1er pl.a :ed inaide the 

a.hipping ~z. 4!ter t.b.-e ~• ot tbe a.b.ippJ.~ box has been put in place and 

.t.aateed, the Gort title(aJ, regiat_. nalloer(a}, fragile and tJPricbt indicatiOA 

will be stencilled on the box and each officer will '30G)>let.e hia cow of J'on 

CSGA!J 1506 bJ' ettbiDc lli el;pletur• and the date tb.-e~. The tm oertitiart&s 

tor eacm peebce wUl thu ~ tUod 1A the records ot CSGAS-82 antil euch Uae 

as tlae ton llHllUonod 1c psaiqraph 7 1a reoeivtd t~ an accountable of'tf.oer w.bo 

('./baa unpeolled the aquipaent tor uae. At. Wt Uh, bat.b. to11QS J'i!pl'Ull!fit.ing \be 

8Ul& 1f.G(I) of equipment 1187 l:ie deatro7ed am i.he regular ~OedUl"A Qf llOaotmf.- v- 1Df placed lrato ettec~ 

y 

f 4. Dea ""'4· The aaor\ title(•} and regiat.er mnber(e) •Ul be ateac11le4 near the cent.er ot the metal barrier cover. Tb• pbna• •moct tb1a D1111bc' ~. ) •1t"1l nan.plat. ou aredWle• will be s!.GlCUlad direcUr belaw tho ehon U.Ue(a) 

~~ -. rec.late mmber(a). 

~ ; s. 8!BPW hi. 'fDe short title(•) am register mamber(a) '1Ul be stencilled 

"- Af'U the lour lett con• on one aide ot the ahlpping I.lox. •treaUe• will be 

~ ai.enc1lled dlapmall.7 &Cl'09a the sl4o and enda in aucdl a pos1Uon as Ht to~ t,ere witb \he abm UU.e and register !IU'.kinp. ~t poeitioA w1l1be11141aaW 
lW' al'TOW on both eitles with the arrov !leads P'<)in~ing t.onrd the top and •thfa 

eid.e Q• eteaollled J.aailetel.7 al»ve the aJ7'0ll lleacla. -

6. M.oGal.!Pf- 'ln traaater ot the pe.c*ll1ed unlta from ooe eustod1AA to 

anot!Mr, the oouoluted. tnuter rep:>rl will lia\ tile mi.ta u •Paalraged SIG&&., 

recut.er mabera l, 2, l, 4, ete.," •• _, be app11eable. 

?. Pl'1or- to shipment ot \ha device to a ueer1 a t&n1 a11betant1all7 as eh:oa. 

on Inclosun 2 w1ll be 11ceurel7 taaten@d 1n the reMhed port.1oa at. one eDd ot 

tke ahJ.ppirc box in. waxe4 envelO)M. '!hJa ton •ill me the correct. return -- 4ro• tfpell or eta&ped in a't tb.et tbte. The •xed enTelope will oe ur.ted ttGpm rs.nt.• 

8. IA new of t.b• mating officer shortqe, the ofticeos requtred tor 

cert.lticeticm Now.1d be present onl7 11hmi &atuall.7 neceu1l1'7. '!laeae otticers 

will be •de available t., !s-26 1lpOll req~t floe .A.1-80. 

a. At leeat. OM of tho tr.> ctt1lll't.i.t'11Dc <dficera will be tl"Gll sauraes 

other than 43-82 or AS-BS. 

b. One ,,r tbe two cert.i.f)'i.ca ,,tfi~e.rs 11:Ul be lt91alar ANf3. 

2 Inc.la 

l. rorsa CSGAS 1506, 

9 ~t 47 (£• trtria} 

2. Sample return ton 

(i:a VfapJ 

Ii. L. ~ 

Ac1.1ng Chiet 1 Sec .ll"i !.y Ji'Tision 

!xt4msJ,.,n 21.l 

2 
REF ID:A71266 

!111~1 

CillCl TIE amIST'Qt uuuam 07 'I1il3 K.\QUllB IWEDUT!«.Y AGAOOT 

THAT sa'n :)I TU covm 71 Ti& an:rJU. BARRIER. 

ENTER TU SIOBT TITLE 11 I>EVICE ____________ • 

D"TEll THE RtDIBZR 3liOiiN :>t4 M~U TS 1F Tli'£ r.ACHINE 

B.EGIST:ca &1W8Ea..._. ______________________________ ___ 

Elf'!?.R '!Hll: MJDZit SBOlm )fl C1V!.R Ji! ~ETAL aARR.Il't~ 

itt:GISTER lltlDER -----------------· 

3 ICil :Lill AND to.-irorul TO 1 
• • 

CROSS REFERENCE SHEET 

- MAIN SUBJECT 

Rar Reserve Stocks 

To AS-24 

From AS-80 

BRIEF SUMMARY 

CLASSIFICATION NUMBER 

Equipment-Storage of Crypto 

Date of Commun1cat1on lON ov 47 

Date of Basrc Document· 

It is considered essential that adequate stockpiles of crpptomechanisms be established to provide for implementation of the 

Mobilization Plan. 

In order to establish a twenty month's adequate stockpile for 

cryptographic machines, it is recommended that authority be grant 

ed Security Division to place 1n war reserve the quantity of 

cryptographic devices indicated below: 

SI GABA 2000 SIGCUM 1250 

SIG IV I IOOO SIGHUAD 500 

SIGAMUG 1?5 SIGNIN 150 

Mrs Beyke Class1f1er 

Typist Mrs Beyke 

CROSS REFERENCE NUMBERS 

WDGAS Form No.1493 7 October 1946 44052 

Routed to File 

Date of Classifying 24 NOV 4? 

Io 7lt!V9--7 
REF. ~D,.; J\.'1,]p2'.§'Ei 

i : A ~ \. 

-rlff.d:M>-o , 

1. .u-zt AS-80 10 lw tT 

' 

1. land cm tM !Je~t ot thG 4nO' aiob1111a~icm Plan 1, lNT, the fb&Md 

Woblli&a,10D Troop 8&•1• .. ta torth 'the act1Ya't1oa aobed\lloa tor all unite lrhioh 

are to he mob1Used alter Lt•fho°• !bl rate at' ac~ivatie will appro:dmat. "°°·')CO -· per moatll "onrd a goal o£ 4,500,000 peraoamol tor twb• pe.rlode and e,ouo~ooo 

peraom:wl t• tweuty-tour period•• 

~ a. It. ia oonaiclend ••M!R1a1 that adequat. atockpU.ea ot e1"7ptoaeoban!eu be 

r1 . enab1141he4 to prortda for 1apleun'tat1an ot 'tlw llobil.l&ation Plan. 

1. Cryptographio equtpmnta have no aamioroial oow:rterparts and therefore 

require oouiderablo tiM tor procnarewuit. Bued. upon experience ill iforld lYar II, 

appre:d•'9q eighteen 'to twenv 1Umi1ha •lape• betwMn tU 1nlt1at1cm or oentraota 

and actual del1veJ7 ot, an. adequate etookiil• ot cr.1ptcaectban1na. J\lrtbar, al• 

thngh uew uyptOMChani ... are b proo••• ot deftlopmttt, no l:n.il.t ~ocure111nrt ie 

ooateaplated until -rguoy ocmdit1ona arrant it. So tor 1.pprox1matel1 •i&htee 

to t.-.eA'ty contne, nia'Mnt 017PtOl!IDo.huiau must aern the uaiAg torH•• 

4. In order to eat&bliah a t.aisv IUD.th' a ad.equate atockpil• tor ceypto-

!!:r&plUo maohillee, it. la r8COlllD8rlded that authority be granted Security D1via1c to 

plaoe in •r reaene tbe qwmttv ot oey:r"°U•phi• devices bul1cated belows 

SIG AM 

SIOIVI 

Sl<WWG 

SIGCUll 

SlGIUAD 

G!QIID 

2000 

4000 

11S 

1250 

500 - 150 

Plana la.ave beeJl 11act• tor the noon41tioning ot tb$e• •ohimle and tbair packaging 

in :aoiature•proet, npor-proo.t •V.1 berrlen. Seourity DiT1•1cn bu recebe4 aeprcrt'al tor the acoowitiJSg procedures tc be uaa4 while tho lli&ehin•• are in atW'llge 

aztd cl\111.Ag thell" d11trilna1:1oa 'o ulAg toroea. 
"""""""f""',.,,'14 ,JC RE-Ji",a J:.D.,::~ • J. • 

- .. 

le .48-1, AS-80 10 JIOY 4T 

De !lutN wen a.600 SIGCUM 1HQ$d d.ving th9 lan war. Ualag the abaft. 

ratl•. nlutf-~ IIICUM will be nqu.ir•d ,.r aoath. 

•• TM All'1fll7S aJl4 Air C-.micat1cma Sel'Tic• requuwnts tor .M-l)q are 

2IO SlCUWAD. S1aee there edll'ta ezsly 158 ot tbese 9"1oea, eai:ne 300 SIOC1114 (Can-

• verter1 g.211) wlll .require aedlt1cat1m to meet W• and ourrn.t require9Jlt.. 

1\ 1a t\anMr uU.el~ted ~t a maber ct SIGBUAD will be required by other uer•, 

naultl.ag 1A eddlt1enal SIOCUll 'beillg ahanged onr to Met those roquiremata. 

d.. !he SIGltl la &n integrated device d.esigaed tor fleld ue bJ" diT.l11la 

and lonr eahelona. A !lUl&ber ot :requoa~s were •do bf the AZ'ffl¥ Ground fonea dur1.Dg "1Mt last war tor a de"fioe ot tbia kind l>ut mme •re 1aauod bseaun the uchiae 

wu :iat e.Yailable beton the war ended. Although the Arq •nd .&1r Poroe require .. 

men. are not mOWD, it 1• 0011aiund •P?ropriate to •in.'k1D a quant11"J' of thla 

4.niM GD bod 1D WU" l"GHrft• 

1:. L. CI...ll5. 

A.ctlng Chi.t. Secu.ri ty "Di Tb ion 

zneuioa. 241 

COl\Ji=IOE:f1TIAQ 

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