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MEK01 

T01 

Crn>tographia Material Iaaued to Foreign Nations. 

llr. Page 

llr. Austin 

1. Additional information reprding iuuance o£ Ol"1Ptoeraphia material to foreign natione baa been fouQd. Thia intor111.t:lon conoarna 

only Converter N.•228 and Alphabet strips. 

2. Th• accountabilit7 reaorda for all SIQCUJI units (over 3,000) 

haTa been examined. At the present date the B~itiah hold eighteen (18) 

unite. These are Register Noe.: 

200, 228, 244, 261, 421, 424, 425, 450, 463, 498, 507, 

524, 2262, 2271, 2999, 3004, .3017, 3041. 

- ). It is not clear from th• correepondence or the aocountabilit7 

records just when the 1ritilh f i:ret bPgan to u.se, or were issued, SIQCUll. 

It appears probable that at first &Olle SIOCUI unite .. re tranaterrttd tJ'Oll 

the Theater Signal Of'f icer to the Britiah with accountab111t7 tor thoee 

units being retained b7 t~e Theater Signal otticar. 

I\• A Memo, dated 19 Mq 1944, argues tor a change in policy and 

recommends changing the existing polic7 of withholding fl'Oll the !ritish 

all information concerning SI\lCUI. 

b. A letter, dated 2 Februaey 1944, to 0-2, requests approval 

tor empl.oJlnent of U-228 bJ the •Br1t.11h Pleet :!edio Unit Colombo, C97lon•. 

Thia request was approved but no 1nfo:rmation wa1 found to show where or how 

the British were aiven &IV' SIQCUll units. 

c. AS-82 has a record to show that SIXUI a7atem SIGLBI •• issued 

23 Ausust 1944 "To Britiah Foroaa". No indication as to whether this •• 

for combined operation or not. 

d. Correspondence read sometime ago (the data and file were not noted 

down at that time) concerned Brit11h sending Secret trattia ot SIOCUll b7 

radio. It is believed that this •a in the South i'acitic and the date 

somewhere between 1945-1947. 

4. The account&bilit7 records here tor SIGCUll aho" that the 'British 

aigned for the la units mentioned above on 24 April J.947. There la al10 

the statement tliia material •• transferred to the British "In accordance 

with SIGW0-294". SIGIHl'0•294 1a a reprint at lar Department letter, 

29 August 1944, subjects J-01107 R8p.rd1ng AccountabilitJ' ot Reciat.ered 

Docuaenta, and concerns provisions for transferring registered c17Ptegrap~ic 

\ material to a.n;r Allied latlon, 

eclassified and approved for release by 

SA on 02-04-2014 ursuantto E.O. 1352 ' \ 

\ SEe1·1c;. 
• REF ID:A67539 • 

.J..,. ""'" J 

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a. Associated correspondence with these accountabillt7 record.a 

now that the British received some, or all, ot the 18 units mentioned 

.t.bov•, about the date 16 December 1946. However, due to clearing up ot 

a question in register number& the receipt ot tranlller was not signed by 

the British until 24 .lpril 1947. It seems as 1t there were two uni ta 

bearing the same register number: 244. No. 244 had previouaq been 

certified as destro)"ed by CW here at ASA. Ho"8Ver, it was also 

certitied that the unit in London also bore tbat DWDber. 

b. There is the additional tact that two or the above units, 

numbers 498 and 2999 were still listed as accountable b7 holder number 

802 in their .report dated 16 October 1946. The other units mentioned 

above show th91 were issued from here in 1943 ti 19.44 but do not show the 

British received them until l:a46. (The individual quarterl7 reports wre 

not searched as that would have taken considerable ti•a). 

5. Nona of the record., or correspondence show that IIOCUI •• is1111ed 

to BJJTOne else except the British, althouth a I-ref' sheet, 1 Jan 1945, 

mentions the poaaibilit7 ot agreeing to issue SIGCm4 to the Canadians. 

6. Information on Alphabet Strip is incomplete. Onl)" the s)"Stema 

issued from here can be found. There is no record ot the systems issued 07 

the individual Theater Signal Officers. The different systems found ao tar 

area 

a. FRI.CH:- S)"Btem 465 (SIGAllOT). Production began l2 December 

1944 and stopped 18 December 1945. 17 di.tterent editions praiuced. 

b. FRENCR-EllGLISH:- S7Btem 497 (SIGNOS). rroduced 6 September 

1943· 2 editions. 

c. I\USSIA: - S)"atem 204 ( SIGDBI) • 22 January 194). 13 ecU t ions 

of Reg. Nos. 6-lS. Record not complete ~t do show Russians apparent]¥ 

received Reg. Nos. (DBI-1) 6, 8-ll, 13-14, 107. Ot DBI-5, 101-104, 

.1.06-107. ot DBI-6, 6, 8-12, 14, 104. Also SIGDMJ-2, Boa. 9 & 10. Notation 

on cards state these were transferred to the Huaiallo in 1943 b7 Qeneral 

Bradl97. .Additional notation on cards state nRemoved from accountabilit7 

26 Januar,y 194411 • 

d. No information could be found as to the nwaba:r of strip boards 

ls sued. , 

7. It EB learned that the first translation ot SIGUHR tor the Ruasiar1s 

had the section on channel elimination deleted. It •a also found that the 

other system made up in 1945-1946 wtiich •s not given to the Rllssiana but 

destroyed according to Col. Cook, did include channel elimination. Thia 

translation ES SIGW'dUT-1, a cop1 ot which ia included • .. 

2 
- ... fl 

.... 

REF ID:A67539 

• • 

8. ln eumm&l7 there were 18 unit. of SIOCUll and 3' e41t1one of 

5 oitferent alpbabet st.rip systems issued to othe:r eountr!aa.