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NOTE: This c!ocum~nt contain:; iofcrr.i&ticil affecti:ie; tho na~ · 

tlon:1I d.:f.enso of tt:c United Stn~Js ~1Elli:i the rnc~ning of tht' 

EGpiQr.acre Act, 50 U. S, C.-31 end 32, cs ;:;mended •.. I ts ·t;an~· 

OCS FORF·1 17 ;..\ ml~ion or the rcvebtion o1 its coi1-

tents in t.ny mt nner to n;t t?n:iu~hc: ;;-.. :xi p;r£c-n 1: p 'l'J:1ibi·L ;:d 

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II On Hi Sep·r,0mbe1· 3 Dr o Es.reel Gola;y,, Signal Corps Labm··ato;.·ies ~ F'to Monmouth~ II 

llf.J-,._, and the repo:ctJng of:ficor, in cor:-:pany with Colonel. I-fam; Leu.twyle1~ :;md Uajo:c J:o'ritz !_I 

von Arx_, bo-th of thr3 Har Technical Sorv:i.ce_, Sr;rL::s Ar1:zy 3 visi·l;cC\ the T.n.·o Ldp-1.l'.' Gretens.r 

1-LG, The co:q:rn.:ny is locid;ed a.t 25 0-Ctemrng in ZuTj_ch; the di:cector of the cmnpany is \j 

Dr. Ec.ig;ar Gretena:c 6 The r:iain products oT the -oor:rpa.ny e.!'e te).0typewrit0rs and telec:ryptor~.' 

rriachine s " ) · 

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\ 'l'he teletypewriter. is la;lmm as ·(;he !::TK 'rclewr:i.tero I'G is c!.air:;ed to be r.ior-e 11 

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si:r.iple in constr.·uct:i.on, mmd.ler and lighter in we:l.ght the.ri ste.ndo.x·d mo.chitrn;; o The lj 

.. 

apparatus eraployc ::i. new form of combination writing whereby 8.11 chare.cterE: s.re bu-.i.J.t v.p Ii 

by a num.ber of elenentary signs. A total of f'ourt;e;e:a eler.:an.tary signs ai'o proYided[, !J 

f:cor:i which·-the whole alph8.bet o.nd all figvres oem be formed~- A converter is necessary fj 

in order to .. operv.tG this machine with the usual fine pulse codt:: tcletypew:riter.., [1 

- I ,I '.l'he 'l'elecrypto appe.re.tus, Type '.CKG 5 14s is em on l:Lne cr;)rpto device whic:h ct1.nl: 

be used wi·ch either the 14 pulse E'.rJC 'l'eletypev.rriter or the stD.r..dard 5 pulse r.w.chineso · l! 

Dr o Golay vm.s very nuch i:mpressed -rd th the nachhw and his :reactions s.nd c cmments can be(! 

found in his ;report to the Sigue.l Corps Laboratories o For further de"t::dled ini'orrrif'.tion. •; 

on both the E'l'K=Telewriter and the Telecrypto Apparatus.:- T;11pe TKG 5/1~~ see IncJ.01nJre 7 I! 

to R--229-50 dated l HoverrL1Jer 1950:> subject: 11 ~'wi ss Ar-r:ry Signal Equipraent,_ 11 · ti 

The C:TK~·Telewriter is stande.rd equipment in the ~)vdsE i\:rcy., The 'l'elecrypto 

Apparntusp Type TffG 5/14 is tmdergoing service teJt b:,1 the Snizs War· Technical Serv:i.ce,, 

It is understood the.t Lr~ Gretenar is in ·t;he tJni ted States at pres1.:nt:- pronot,ing hh: 

pr-oJ.ucts~ It is also unQ.erstood that the UGSoAol''o has purchased ~;one itens of th:i.r: 

equipment .. 

cm!.u1fl.ENTS 01" THE PREPARING or·ncER: 

The ETK='fe10wri tez- appears to -be e. gqod f.',[\_Chine but in the opinion of the: 

reporting of1icer it can not conpare with the new lightweight teletypewriter recently 

developed by ·c.he i:.lignal Corps Labor.atories., The Telecrypto Api:-~- ratus, Type 1'KG 5/14 

appuirs to satisfy ma.'1.y of the U~S. uili to.r;y charac.teristics. for such equiprie:at, vd.th 

one exception - that oi' weighto Howeve~·, this r.w.chine might be oi' :lnter0st to Arm;)' 

Security Agency., 

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