152 resultados
1691ref. 125591691 A Bruxelles, chez Jean léonard, Libraire imprimeur, rue dela Cour, 1691; in-16 de (12)pp. ( fx-titre, titre, table) - 276pp.; pleine basane brune marbrée de l'époque, dos à nerfs, caissons de filets dorés ornés de petits fers dorés, titre doré.Traité de stéganographie ou l'art de dissimuler un message, ou des données par Claude Comiers, prêtre, physicien et mathématicien, né à Embrun et mort, aveugle à Paris en octobre 1693, à l'Hôpital des Quinze-vingts
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ref. 98335A. Fayard, Paris, 1880, 1 volume in-8 de 245x155 mm environ, 512 pages, demi-chagrin rouge d'époque, dos à nerfs portant titres dorés, orné de caissons à motifs dorés, gardes marbrées. Avec des illustrations dans le texte. Plats salis, internes fendus, des rousseurs sur certaines pages, quelques petits défauts de marges, 2 feuillets détachés (339-342), déchirure sans manque p. 362.
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19893 vols., 8vo., First Edition, with 46 plates on 24, very numerous photographs, facsimiles, maps and diagrams (many full-page) in the text and front and rear endpaper maps (first two volumes) and front endpaper chart (third volume); green cloth, gilt backs, a near fine set in unclipped dustwrapper. FIRST AND THIRD VOLUMES SIGNED BY THE AUTHOR ON TITLE. The trilogy comprises Spies of the Airwaves (1989), Knowledge strengthens the Arm (1991) and Enigma and its Achilles Heel (1992). Skillen's comprehensive and detailed history of the Y Services is a remarkable personal achievement. The first volume describes how Y provided Allied commanders with regular and accurate intelligence through wireless intercepts. The second volume concentrates on the background to the training of intelligence officers (including a fascinating personal diary of signals exercises and details of the three Germans who made Y victory possible). The final volume stresses the intricacies of the interplay between Y and ULTRA, some elements of which are lost even now in classified secrecy. Privately printed in relatively small numbers, individual volumes are increasingly scarce. Together they comprise an outstanding contribution to the understanding of Y, ULTRA and Enigma throughout WWII. COMPLETE SETS ARE VERY SCARCE.
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19795 vols. in 6., roy. 8vo., First Edition, with coloured endpaper maps; green cloth, gilt backs, a fine set in unclipped dustwrapper. Published in the UK government's official series 'The History of the Second World War'. The complete set comprises Vol. I (1979), Vol. 2 (1981), Vol. 3 Part 1 (1984), Vol. 3 Part 2 (1988), Vol. 4: Security and Counter-Intelligence (1990) and Vol. 5: Strategic Deception (1990). Contributors include E E Thomas, CFG Ransom, RC Knight, CAG Simkins and Michael Howard, INCREASINGLY SCARCE AS SET, ESPECIALLY IN THIS CONDITION.