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I REF ID:A275215 

l August 1944. 

De&r John: 

First--my most sincere congratulations on your advancement to 

Brigadier. I learned of this well-deserved promotion only recently and found that your status bas been elevated in some manner or 

other which was not made clear to me. I gather that Lt. Colonel 

Jacob bad been promoted to Colonel and bas taken over much of the 

administrative duties connected with the Military Wing, thus relieving 

you of' a considerable burden of non-technical activities. If' that 

is the case, I am sure that you will probably be much ba.ppier and 

better able to do the sort of work for which you are so eminently 

qualified. ~~ '\j"U'A 

Your letter or June 26 came quite promptlJ.:. I am sorry tba.t 

Geoffrey lead you to believe that I was put out" in aD.1' way with your failure to write because the whole matter was cleared up when the 

mueh delayed letter you wrote me so promptly upon your return h~fe 

finally reached me. Both Mrs. Friedman and I much appreciated 71tur 

note and the one from Mrs. Tiltman. ,. 

We were all so ver7 much charmed by the print 7ou eent us 

and which will be framed in due eourae. I dare say you are getting 

a great deal or run out ot tbi:'ll? mezzotint work. I wish I could do 

something like tbat 1 hut instead I have been practicing a bit with 

our nevly organized symphon,- oreh;:tra. If I didn't reel so rusty 

on the violin I probably would get more :run out of 1t1 and 1n the 

hot weather it is difficult to find the energy- to practice at home 

to wear away the rust. Ma7be the next time 7ou come over this wa7 

we Yill arrange a special concert for your benefit; then you can see 

what sort or a poor artist I am. 

Apparently Rowlett bad a very excellent and profi~~ble visit 

all around. I bave bad a nice letter ti-om Denniston indicating his 

appreciation of Rowlett•s visit and nov comes word from 7ou to the 

same tenor. I am looking forward eagerly to getting trom him some 

detailed written reports vhieh he is tr7ing to produce in between 

houi-s. 

I am aleo glad to hear of your h:tgh regard tor Fried. We think 

him an excellent representative 1 but soon his turn will be up and 

ve ~111 have to do something toward either extending his stay or replacing him. 

I wonder whether you got a chance to take a look at the telepr1nt cryptographic machine known as Converter K-228. Ve bad a 

demonstration over here ror some of your people and I underattiind 

that Bieber gave & demonstration over there. Travis bas raised 

some questions about it tba.t Geotrre7 as taken up with us. I hope 

to get an answer for him. today or to•orrov. I would also like to 

kno-w your opinion of its secUl'it7 when you get around to studying the 

machine. 

@'pproved for Release by NSA on 07-16-2014 pursuantto E.O. 1352a 
REF ID:A275215 

Things &l'e moving along in t&U-17 good shape here and I 

rather gather that the same is true over in 7our dil'ect1on, although recentl7 some t&1r17 Wicked things bave been turniDg 

up according to vb&t Rowlett and :Fried tell me. 

Joe Wenger told me some weeks ago that he thought there was 

a poasib111~y ot Eddie Hastings coming over tor a visit some time 

this autumn. I ror one would be ver7 b&pp7 to see him because I 

would like to pl&7 a bit ot golt with him. I think I could trim 

h1JR nov. 

Please give m7 vei-7 best regards to all 1D.7 m&D.7 f"l91ends and 

again I otter IQ' congratulations on 70Ul' advancement. 

81ncere17 7ou:rs, 

William P'. Friedman. 

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