BRIGGS AsaMareMagnum
56 resultados
20118vo., First Edition, with 19 coloured plates on 8 and 42 monochrome plates on 16; black cloth, gilt back, a fine copy in unclipped dustwrapper. Lord Briggs worked for five years in Hut Six alongside Turing and Welchman. A particularly well-illustrated memoir.
19828vo., First Edition, with 23 plates on 16 and 5 maps (one double-page) in the text, page edges tanned as usual; original black cloth, backstrip lettered in silver, a very good, clean copy in unclipped dustwrapper, the latter mildly sunned at backstrip. The story of Reginald Hall's famous Room 40, the Admiralty's codebreaking organisation during the Great War. Like its WWII successor at Bletchley, it was successful in breaking and manipulating German naval and diplomatic codes, and its achievements had a profound effect on the outcome of the conflict. ALREADY SCARCE IN THIS CONDITION
grand in-8°, 297 pp, cartonnage ed. avec jaquette illustree. Leger accroc a la jaquette sinon bel exemplaire. [NV-4]
1982ref. 18459Presses Universitaires de France 1982 collection Que sais-je #116. in12. 1982. broché. Cet ouvrage d'André Muller publié dans la collection Que sais-je ? explore l'histoire et les principes des écritures secrètes en se concentrant sur les techniques de chiffrement. Il propose une introduction didactique à la cryptographie abordant ses méthodes et son évolution
1977ref. 86176Keene NH: TSU Press 1977. No statement of printing or edition. Inscribed illegibly on title page signed by the author undated. Quarto 28cm. Side-stapled sheets; printed from typescript; 110pp. Fine. An attempt to reconstruct the history and chronology of the tactical use of "Ultra" - the top-secret decryption technique pionered at Bletchley Park in England - by American forces in WW2. At the time this work was assembled all government documents on Ultra remained classified; Bell through a mult-year effort was able to obtain three pertinent reports Freedom of Information Act; they are reproduced with redactions here: George C. Marshall's Order of March 15 1944; "Synthesis of Experiences in the Use of Ultra Intelligence by U.S. Army Field Commands" 1944; and "Use of CX/MSS Ultra by the United States War Department" 1945. Self-published and uncommon. TSU Press unknown
ref. 25142eme année numéro 4 décembre 1946 in 4 broché (27,5X22 cm) 144 pages 1 carte dépliante
