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General Notes on Data 

(A) long: title is given first, follov.red by short title (when one is assigned). 

(B) The total ruantity r.iay have been procured mder one or nore contracts. 

(C) ··!here two or more contracts were involved, the unit cost is the average 

of the unit costs of the separate contracts. 

(D) Following key numbers signify follov:ing producing or manufacturing agencies. 

1. Signal Corps Laboratories, Fort l•bnmouth, N. J. 

2. Wallace and Tiernan Products, Inc., Belleville, New Jersey. 

3. Teletype CorfOration, Chicago, Illinois. 

4. L.C. Smith-Corona 'l'ype11riter Co., Syracuse, New York 

5. Fournier Institute, Chicago, Illinois. 

(E) Only such technical literature and/or manuals as contain :information 

describing the equipment are included. Under the special notes below will 

be found data relative to any patents or patent applications filed by 

U.S. employees covering the specific item or applicable to specific features 

thereof. 

Special notes on th~_:h_t_ems listed 

(1) Item 1 was purely an experimental model and was never put into service; 

available in PSA nru.seum. Cost of development unknown but might be obtained 

from old records of Signal Corps Laboratories. This development was covered 

by U.S. Patent No. 2,028,772, which was i~>sued 28 Jan 1936. 

(2) The two machines constituting Item 2 were pilot models for Item 3; 

available in ASA nuseum. Cost of develoμaent unkno•m but might be obtained 

from old records of Signal Corps Laboratories. This developnent was covered 

by U .'.':. Patent Application No. 682,096, which was filed 25 July 1933 and is 

still i n secrecy status. 

(3) These machines were delivered in ,»ugust 1938 and were ir. service for 

several years until superseded by Item 7; then destroyed except for one in 

ASA museum. Pat. application mentioned u:ider item 2 covers these machines. 

(4) These I'BChines incor:i:orated some Elinor morlifications in Item 3. Eight 

mach·tnes v;ere purchased from the 'iar Department by the State Department. 

About a dozen were given to and used by the ms after item 7 became available 

to Arey. All machines were in service for several ;years. Pat. Appl. 682.p96 

applies also to these machines. 

(5) This served as pilot model for Iter:i 6; available in J\SA museum. Basic 

principles covered in U •. ~;. Patent applicR.tion mentioned under item 7 below. 

This unit replaced the key-tape transmitter of Items 3 and 4 and served as 

controlling element for stepping the rotors. 
REF ID:A273720 

(6) These units were m use for at most 2 years, until Converter H-134-C 

replaced Converters M-13h and M-134 A. 

(7) This machire constituted the principal one used by ;m-ny and Navy for 

intra and inter-service high and mediwn-echelon classified conummications. 

Preliminary models and pre-production models developed by Teletype Corp; 

available in Navy museum. Basic cryptographic principles are covered by 

U .s. Patent Application No. 70, 412 which was filed 23 Mc.rch 1936 and is 

still in secrecy status. It is believed th.<i.t certain patent applications 

have been filed by U .s. Navy personrel and by the Teletype Corμ>ration, 

Chicago, Ill., to cover certain special features of this equipment. 

(8) 'I'hese were experimental models constructed in an attempt to produce a 

sl!'.aller an::i lighter version of Converter lf-134-C; available in A,._qi'i. nuseum. 

Cryptographic pr:inciples the same as :in item 7. 

(9) These special cipher units were purchased from the Navy. They made 

Converter M-134-C (Item No. 7) utilizable for combined comnrunications 

(with British only) as one version of a cryptographic r..achine designated 

as the CCH (Combined Cipher Machire). · 

(10) These were develo?ment nodels for Item No. 11. 'I'hei cryptographic 

nrinciples are covered in U •. '.i. Patent Application No. 443 ,320, which was 

·riled 16 Hay 1942 and is still in secrecy status. 

(11) 'l'hese machines were employed for on-line and off-line teletype and 

radioteletype comrnmications; machines availe.hle in ASA nuseum. The Navy 

also used these machines. :, few \'Jere issued to Jritish for use only in 

combined cornr:~nications. 

(12) Develor:ment model, followed by an actdi tional. development model before 

standardizing; available in .ASA museum. CI"'Jptographic features si1ailar to 

those of item 10. 

(13) These were delivered too late to be employed during actual hostilities; 

now in storage. ,, few ~•ere used in service tests for a very short tLie. ..:. 

few were used in Europe in 1%.6 by U .s. Constabulary Force for a short tiue. 

(14) tevelopment model, followed by an additional development model before 

standardizing; available in ;c,fi. ruseum. Certain featurE::s covered in U .s. 

Patent ,t,.pplication No. 549, 086, which was filed ll .·ugust 1941+ and is still 

in secrecy status. 

(15) 'l'he State Departrr,ent received 1000 of these machines, put a rumber of 

them into service for a short period and returned them. 'l'he army used them 

briefly in service tests. The machine ·nas never used extensively because of 

poor performance. 
REF ID:A273720 

(16) Developmental model; available in· A.SA museum. 

(17) This it.em was the one forming the subject matter of Project C-52, 

Contract OEMsr-542, of Office of Scientific Research and Develollllent, 

National I:efense Research Council, Division lJ,NDRC, "lashington, 1946, pp 120--2.2. 

Developmental work done by Fournier Institute at no cost to the Government. 

(18) Rotors of several types were made •. The type used with itens 2,3, and 4 

vere li.higma Style, mt reversible or :invertible; other rotors were all of 

Hebern invertible type. · 

I 
REF ID:A273720 

General Notes on Data -.--.;;.;....;;.;.M,..-.;.;;;..;;.... -

(A) long title is given first, followed by short title (when one is assigned). 

{B) The total quantit7 .may have been procured under one or !!lore contracts. 

(C) ~'l'here two or more contracts were involved, the unit cost is the average 

or the unit costs of the separate contracts. 

(D) Following key numbers signif)' following producing or manufacturing agencies. 

1. Si~al Corps ·Laboratories, Fort lbnmouth, N. J. 

2. Wallace and Tiernan Products, Inc., Belleville, New Jersq • 

.3. TeletYPe Oorrx>ration, Chicago, Illinois. 

4. L.c. Smith-Corona fypewriter Co., Syracuse, New York 

5. Fournier Institute, Chic~, Illinois. 

(E) Only such technical. literature and/or manuals as contain information 

describing the equipmnt are included. Under the special notes below will 

be found data relative to any patents or pata'lt applications tiled by 

u.s. employees covering the specific item or applicable to specific features 

thereof. · 

S 2?2ial note..!L.2.!1. the itEIIlS listed 

(l) Item 1 was purely an experimental model and was never put into service; 

available in .ASA museum. Chst of developmnt unknown but might be obtained 

from old records of Signal Corps Laboratories. This development was covered 

by U.S. Pa.tent Mo. 21 02811721 which was i~-;sued. 28 Jan 1936. 

(2) The two machines constituting Item 2 'Were pilot models for Item J; 

available in ASA. mseum. Cost of develoi:ment unknown but might be obtained 

f'rom old records of Signal Corps Laboratories. This development was covered 

b;y U .s. Patent Applicati<n No. 6821 096, which was filed 25 July 193.3 and is 

still i n secrecy status. 

(3) Tl'ese machines were delivered. in August 1938 and were in service for 

several years until superseded b;y Item 7; then destroyed except. for one in 

ASA museum. Pat. application :r.ientioned under item 2 covers these machines. 

(4) These n~chines incorp:n-ated soma minor modifications in Item 3. Eight. 

machines were μ.u:chased from the Tiar Department b7 the State Department. 

About a cbz.en were given to and used by the CBS after itEm 7 became a.Yailable 

to Arntr.. All machines were in service for several years. Pat. Appl. 682p96 

applies also to these mchines. 

(5) This served as pilot model for Item 6; available in ASA museum. Basic 

principles covered in U. s. Patent application mentioned under item 7 below. 

This unit replaced the key-tape transmitter of Items .3 and 4 and served as 

controlling element for stepping the rotors. 
. REF ID :A273720 

(6) TheEte unit.s were m uoo for at rost 2 Yf.i·:..2·n, until Convert.er V-134-C 

re~ced Converters M-1}\ rmd l~-1.%. A. 

(7) This machim (X)nstituted the prineipnl one used by Army am Ravy for 

intra and inter-service high i1nri r:ioditul'!-echelon cla.ssified COJllllllnicatians. 

P.relim.inary raodcls lllld pre-produc'.~ion .roodols developed by Teletype CorpJ 

available in lavy museum.. Basic cryptographic prirx;i,lJles are oovered by 

U .;; • Patent Apr.lication t!o. 70, 412 ·nhich was filed 23 lfarch 1936 and is 

st.ill in secrecy status. It in believed th:-;t certain patent ap:pl.ieations 

have beci tiled by U.S. Ravy personml and by the Teletype CorJX>ratioo,, 

Chicago, n1., to cov_. certain special teatures of this equi.pment. 

(8) These were experimental 1:'.odels constr\lcted in an at tempt to produce a 

smaller am. lighter version of Caiverter U-134-C; available in ASA mseum. 

Cr,yptoeraph..1..c principles the same as in itan 7. 

(9) These special cipher units were pm-chased from ttte N<:i.'Y)"• They made 

Converter ti-134-C (Item Mo. 7) utilizable for cc>mbin<.:d comnrurdcations 

(flith British only) as one versfon of a cryptogrt.phic rnachlne designated 

as t.he CCU (Combined Cipher lfc.chirE). 

{10) These ~e development nodels for Item No. li. The CJ7ptographic 

principles are· covered in U. 3. Patent Application r1o. 443,3201 which waa 

f'iled 16 liq 1942 and is still in secrec7 stat.us. 

(11) 'l'hese .nachinee were employed for en-line am or!-line tal.et7pe and 

radiotelet;ype connmicat.ions; machines available in ASA Dll.BeWll. The laY7 

also med these llllchines. .'• :f'ew were issued to British tor use only in 

combined communications. 

(12) Developnent mod.el,. followed bJ an additional. developnent. model betore 

standardiaing; available in ASA mseum. Cryptographic features similar to 

those of it~1 10. 

(13) 'Ihese rHre delivered. too late to be employed during actual hostilitieBJ 

now in storage. A few were used in service tests for a VfJl.7 short time. A 

few Vlere used in .Europe in 1946 by U.S. Conatabul.ar,y Force f<r _a abort U.:e. 

(14) Davelopaent model, toll.owed b7 an additional development model betore 

etindardizing; available 1n ASA maeua. Certain; features cov .. ed in u.s. 

Patent Applicati0n No. 549, 0861 which waa tiled ll ..\igust 1944 and is st.ill 

in secrecy status. 

(15) Tbs State Department :received 1000 of theae mchine8- put a mmbar o:t 

them into sarvice tor a short period and returned tha. The army used t:tai 

brief~ in service tests. The IJBchine wae never used extcsively because of 

poor performance• 

, -·~ 
REF ID:A273720 

(16) Developnental r.iodel; avaJJ.a.ble in A~A IUU!3'1Wle 

(17) This iteu was the one fc.rrr.J..ng the subject matter or Project C-521 

.Contract. CEJlsr-5421 or 0.ffice of Scientif'ic Research and Developuent, 

National Defense Ri~search Council_, Division lJ,rmRc .. ''lashington, 19461 pp 120-22. 

Developmental work done hy Fournior Institute at. no cost to the ri0vernment.. 

(18) Rotor::; of se--veral t.ypes 11ere uade. '::.'he Wi:>e used with itEII18 213, aixl. 4 

"Rere jt}:1igma Style, rot reversible· or invertible; oth•3r rotors were all or 

Hebcrn 1nver-tible type.